Well if you win 1 million and you take cash you get about 40% of it. The taxes, everything is taken out before you get it.
400,000 dollars can buy a piece of land and a house in some parts of the US, but the property tax will be far higher on a bigger house and land...somehow you'll have to pay that after all the lottery money has been spent on the land and house.
And anything expensive that you can buy, is pretty much like that. Expensive cars have expensive insurance and upkeep, expensive animals need vet care and training and such.
It's hard to find anything that you could buy for 400k that doesn't put a heavy long time financial burden on you after the lottery money is gone.
Realistically, I'd have to give gifts to some relatives and would make some property improvements, plough the rest into an insured annuity. Setting aside liquid cash for emergencies is always good. Money spent on education, training for a better job, getting health care one's been missing, etc.
But a big lifestyle change is not good. It's better to stick with what you know, and put the money into things one actually lacks that one needs. Sometimes buying a business is possible, but it better be thought out very, very carefully or the entire investment could be lost; many businesses fail every year.
And for people who don't have experience handling money, they are better off getting a lot of guidance and even having a budget set up and having an accountant, as long as they can oversee what the accountant is doing so they don't get ripped off. Managing money is not at all easy and it is easy to lose it all. Having good financial advice would be crucial.
I think the tv shows of people buying cars, huge houses, all sorts of expensive toys, are dumb. I think that they should show where the person is at longer term when they do that. Usually, long term, in worse shape. Money is just not that easy to manage.