57338728 has 16 divisors (see below), whose sum is σ = 107714880. Its totient is φ = 28614768.

The previous prime is 57338717. The next prime is 57338779. The reversal of 57338728 is 82783375.

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, 2176 + ... + 10927.

It is an arithmetic number, because the mean of its divisors is an integer number (6732180).

Almost surely, 2^57338728 is an apocalyptic number.

It is an amenable number.

57338728 is a deficient number, since it is larger than the sum of its proper divisors (50376152).

57338728 is a wasteful number, since it uses less digits than its factorization.

57338728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13656 (or 13652 counting only the distinct ones).

The product of its digits is 282240, while the sum is 43.

The square root of 57338728 is about 7572.2340164578. The cubic root of 57338728 is about 385.6109443184.

The spelling of 57338728 in words is "fifty-seven million, three hundred thirty-eight thousand, seven hundred twenty-eight".