Fatto generale: 4048 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 4048 is a value of n for which n, 2n, 3n, and 4n all use the same number of digits in Roman numerals.
Trivia: 4048 is an unremarkable number.
Data storica: January 30th is the day in 1911 that the destroyer USS Terry (DD-25) makes the first airplane rescue at sea saving the life of James McCurdy 10 miles from Havana, Cuba.