57907240 has 64 divisors (see below), whose sum is σ = 134861760. Its totient is φ = 22364160.

The previous prime is 57907181. The next prime is 57907259. The reversal of 57907240 is 4270975.

It is a junction number, because it is equal to n+sod(n) for n = 57907196 and 57907205.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225192 + ... + 225448.

It is an arithmetic number, because the mean of its divisors is an integer number (2107215).

Almost surely, 2^57907240 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 57907240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67430880).

57907240 is an abundant number, since it is smaller than the sum of its proper divisors (76954520).

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

57907240 is a wasteful number, since it uses less digits than its factorization.

57907240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 57907240 is about 7609.6806766119. The cubic root of 57907240 is about 386.8811961864.

The spelling of 57907240 in words is "fifty-seven million, nine hundred seven thousand, two hundred forty".