57372040 has 64 divisors (see below), whose sum is σ = 142326720. Its totient is φ = 20640000.

The previous prime is 57372017. The next prime is 57372043. The reversal of 57372040 is 4027375.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (57372043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43795 + ... + 45085.

It is an arithmetic number, because the mean of its divisors is an integer number (2223855).

Almost surely, 2^57372040 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 57372040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71163360).

57372040 is an abundant number, since it is smaller than the sum of its proper divisors (84954680).

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

57372040 is a wasteful number, since it uses less digits than its factorization.

57372040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414 (or 1410 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 57372040 is about 7574.4333121363. The cubic root of 57372040 is about 385.6856058106.

It can be divided in two parts, 5737 and 2040, that added together give a palindrome (7777).

The spelling of 57372040 in words is "fifty-seven million, three hundred seventy-two thousand, forty".