Fatto generale: 4285 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 4285 is a structured hexagonal diamond number.
Trivia: 4285 is a boring number.
Data storica: September 24th is the day in 1988 that National League for Democracy is formed by Aung San Suu Kyi and various others to help fight against dictatorship in Myanmar.