57058240 has 28 divisors (see below), whose sum is σ = 135870696. Its totient is φ = 22823168.

The previous prime is 57058223. The next prime is 57058247. The reversal of 57058240 is 4285075.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57058247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88834 + ... + 89473.

Almost surely, 2^57058240 is an apocalyptic number.

It is an amenable number.

57058240 is an abundant number, since it is smaller than the sum of its proper divisors (78812456).

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

57058240 is a wasteful number, since it uses less digits than its factorization.

57058240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178324 (or 178314 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 57058240 is about 7553.6904887611. The cubic root of 57058240 is about 384.9811426082.

The spelling of 57058240 in words is "fifty-seven million, fifty-eight thousand, two hundred forty".