57885240 has 128 divisors (see below), whose sum is σ = 200309760. Its totient is φ = 13108224.

The previous prime is 57885239. The next prime is 57885251. The reversal of 57885240 is 4258875.

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, 114829 + ... + 115331.

It is an arithmetic number, because the mean of its divisors is an integer number (1564920).

Almost surely, 2^57885240 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 57885240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100154880).

57885240 is an abundant number, since it is smaller than the sum of its proper divisors (142424520).

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

57885240 is a wasteful number, since it uses less digits than its factorization.

57885240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 57885240 is about 7608.2350121431. The cubic root of 57885240 is about 386.8321956100.

The spelling of 57885240 in words is "fifty-seven million, eight hundred eighty-five thousand, two hundred forty".