74304728 has 32 divisors (see below), whose sum is σ = 146869200. Its totient is φ = 35188608.

The previous prime is 74304721. The next prime is 74304749. The reversal of 74304728 is 82740347.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74304721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9275 + ... + 15317.

Almost surely, 2^74304728 is an apocalyptic number.

It is an amenable number.

74304728 is a deficient number, since it is larger than the sum of its proper divisors (72564472).

74304728 is a wasteful number, since it uses less digits than its factorization.

74304728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6131 (or 6127 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 74304728 is about 8620.0190255010. The cubic root of 74304728 is about 420.4091402360.

The spelling of 74304728 in words is "seventy-four million, three hundred four thousand, seven hundred twenty-eight".