Not sure tbh. I always said if I won the lottery I would donate a lot of it but leave myself enough to set up me and my family for good. But as Oldie said, 1 mil doesn't go as far in the grand scheme of things.
I would probably buy a car (which wouldn't even dent it since my dream cars are all cars a normal middle class person could afford). Probably a house. Would toss my mother, father and sister a bone and then work on saving the rest.