57404328 has 16 divisors (see below), whose sum is σ = 143510880. Its totient is φ = 19134768.

The previous prime is 57404317. The next prime is 57404407. The reversal of 57404328 is 82340475.

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, 1195900 + ... + 1195947.

It is an arithmetic number, because the mean of its divisors is an integer number (8969430).

Almost surely, 2^57404328 is an apocalyptic number.

It is an amenable number.

57404328 is an abundant number, since it is smaller than the sum of its proper divisors (86106552).

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

57404328 is a wasteful number, since it uses less digits than its factorization.

57404328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391856 (or 2391852 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 57404328 is about 7576.5643929158. The cubic root of 57404328 is about 385.7579446563.

The spelling of 57404328 in words is "fifty-seven million, four hundred four thousand, three hundred twenty-eight".