General fact: 74408 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 74408 is a boring number.
Trivia: 74408 is a boring number.
Historical date: September 21st is the day in 1953 that LT No Kum-Sok a North Korean pilot defected to South Korea and is associated with Operation Moolah.