57030732 has 72 divisors (see below), whose sum is σ = 159344640. Its totient is φ = 17053920.

The previous prime is 57030709. The next prime is 57030749. The reversal of 57030732 is 23703075.

It is a junction number, because it is equal to n+sod(n) for n = 57030696 and 57030705.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30373 + ... + 32195.

It is an arithmetic number, because the mean of its divisors is an integer number (2213120).

Almost surely, 2^57030732 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 57030732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79672320).

57030732 is an abundant number, since it is smaller than the sum of its proper divisors (102313908).

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

57030732 is a wasteful number, since it uses less digits than its factorization.

57030732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923 (or 1918 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 27.

The square root of 57030732 is about 7551.8694374307. The cubic root of 57030732 is about 384.9192656934.

It can be divided in two parts, 5703073 and 2, that added together give a palindrome (5703075).

The spelling of 57030732 in words is "fifty-seven million, thirty thousand, seven hundred thirty-two".