57028938 has 8 divisors (see below), whose sum is σ = 114057888. Its totient is φ = 19009644.

The previous prime is 57028903. The next prime is 57028963. The reversal of 57028938 is 83982075.

It is a sphenic number, since it is the product of 3 distinct primes.

57028938 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57028938.

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, 4752406 + ... + 4752417.

It is an arithmetic number, because the mean of its divisors is an integer number (14257236).

Almost surely, 2^57028938 is an apocalyptic number.

57028938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57028938 is a wasteful number, since it uses less digits than its factorization.

57028938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9504828.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 57028938 is about 7551.7506579600. The cubic root of 57028938 is about 384.9152295513.

The spelling of 57028938 in words is "fifty-seven million, twenty-eight thousand, nine hundred thirty-eight".