Fatto generale: 4620 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 4620 is the largest order of a permutation of 30 or 31 elements.
Trivia: 4620 is an unremarkable number.
Data storica: August 24th is the day in 2001 that Air Transat Flight 236 runs out of fuel over the Atlantic Ocean (en route to Lisbon from Toronto) and makes an emergency landing in the Azores.