7481904 has 80 divisors (see below), whose sum is σ = 20971872. Its totient is φ = 2289664.

The previous prime is 7481879. The next prime is 7481911. The reversal of 7481904 is 4091847.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43162 + ... + 43334.

Almost surely, 2^7481904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7481904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10485936).

7481904 is an abundant number, since it is smaller than the sum of its proper divisors (13489968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7481904 is a wasteful number, since it uses less digits than its factorization.

7481904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 7481904 is about 2735.3069297613. The cubic root of 7481904 is about 195.5858253954.

It can be divided in two parts, 7481 and 904, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 7481904 in words is "seven million, four hundred eighty-one thousand, nine hundred four".