74621904 has 60 divisors (see below), whose sum is σ = 224253504. Its totient is φ = 21319872.

The previous prime is 74621893. The next prime is 74621909. The reversal of 74621904 is 40912647.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74621909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13512 + ... + 18215.

Almost surely, 2^74621904 is an apocalyptic number.

It is an amenable number.

74621904 is an abundant number, since it is smaller than the sum of its proper divisors (149631600).

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

74621904 is a wasteful number, since it uses less digits than its factorization.

74621904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31752 (or 31739 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 74621904 is about 8638.3970735316. The cubic root of 74621904 is about 421.0064750764.

The spelling of 74621904 in words is "seventy-four million, six hundred twenty-one thousand, nine hundred four".