57030432 has 72 divisors (see below), whose sum is σ = 156636144. Its totient is φ = 18167424.

The previous prime is 57030397. The next prime is 57030437. The reversal of 57030432 is 23403075.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (57030437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50223 + ... + 51345.

It is an arithmetic number, because the mean of its divisors is an integer number (2175502).

Almost surely, 2^57030432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57030432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78318072).

57030432 is an abundant number, since it is smaller than the sum of its proper divisors (99605712).

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

57030432 is a wasteful number, since it uses less digits than its factorization.

57030432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182 (or 1151 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 57030432 is about 7551.8495747731. The cubic root of 57030432 is about 384.9185907591.

The spelling of 57030432 in words is "fifty-seven million, thirty thousand, four hundred thirty-two".