Hecho general: 4413 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 4413 is the index of a prime Euclid number.
Trivia: 4413 is an uninteresting number.
Fecha histórica: January 30th is the day in 1975 that the Monitor National Marine Sanctuary is established as the first United States National Marine Sanctuary.