57030870 has 64 divisors (see below), whose sum is σ = 148236480. Its totient is φ = 13959168.

The previous prime is 57030829. The next prime is 57030889. The reversal of 57030870 is 7803075.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99946 + ... + 100514.

It is an arithmetic number, because the mean of its divisors is an integer number (2316195).

Almost surely, 2^57030870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57030870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74118240).

57030870 is an abundant number, since it is smaller than the sum of its proper divisors (91205610).

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

57030870 is a wasteful number, since it uses less digits than its factorization.

57030870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 57030870 is about 7551.8785742357. The cubic root of 57030870 is about 384.9195761623.

The spelling of 57030870 in words is "fifty-seven million, thirty thousand, eight hundred seventy".