74739928 has 16 divisors (see below), whose sum is σ = 141448680. Its totient is φ = 37020288.

The previous prime is 74739913. The next prime is 74739967. The reversal of 74739928 is 82993747.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42801 + ... + 44512.

Almost surely, 2^74739928 is an apocalyptic number.

It is an amenable number.

74739928 is a deficient number, since it is larger than the sum of its proper divisors (66708752).

74739928 is a wasteful number, since it uses less digits than its factorization.

74739928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87426 (or 87422 counting only the distinct ones).

The product of its digits is 762048, while the sum is 49.

The square root of 74739928 is about 8645.2257344733. The cubic root of 74739928 is about 421.2283165292.

The spelling of 74739928 in words is "seventy-four million, seven hundred thirty-nine thousand, nine hundred twenty-eight".