Fatto generale: 2407 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 2407 is a value of n for which s(f(n)) = 2s(n).
Trivia: 2407 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: August 3rd is the day in 1934 that Adolf Hitler becomes the supreme leader of Germany by joining the offices of President and Chancellor into Führer.