57058380 has 36 divisors (see below), whose sum is σ = 173077632. Its totient is φ = 15215520.

The previous prime is 57058373. The next prime is 57058411. The reversal of 57058380 is 8385075.

It is a happy number.

57058380 is a `hidden beast` number, since 5 + 70 + 583 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158316 + ... + 158675.

It is an arithmetic number, because the mean of its divisors is an integer number (4807712).

Almost surely, 2^57058380 is an apocalyptic number.

It is an amenable number.

57058380 is an abundant number, since it is smaller than the sum of its proper divisors (116019252).

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

57058380 is a wasteful number, since it uses less digits than its factorization.

57058380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317006 (or 317001 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 57058380 is about 7553.6997557488. The cubic root of 57058380 is about 384.9814574754.

The spelling of 57058380 in words is "fifty-seven million, fifty-eight thousand, three hundred eighty".