1.45M i believe
Tiger Woods won the 2000 US Masters.
Bernhard Langer won the 1985 masters
Bubba Watson won the Masters in 2012.
There are different awards for each year. For example, the total prize for the 2008 Masters Tournament was $7.500.000. The winner won $1.350.000 in 2008.
Nick Faldo won the 1996 Masters, scoring -12