It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1047 = 3 ⋅349.
It is a D-number.
It is a Duffinian number.
7401 is a lucky number.
It is a plaindrome in base 9.
It is a zygodrome in base 9.
It is an amenable number.
7401 is a wasteful number, since it uses less digits than its factorization.
7401 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2470.
The square root of 7401 is about 86.0290648560. The cubic root of 7401 is about 19.4878293548.
Adding to 7401 its reverse (1047), we get a palindrome (8448).
The spelling of 7401 in words is "seven thousand, four hundred one", and thus it is an iban number.