57609240 has 64 divisors (see below), whose sum is σ = 186127200. Its totient is φ = 14180352.

The previous prime is 57609203. The next prime is 57609241. The reversal of 57609240 is 4290675.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57609241) 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, 16905 + ... + 20024.

Almost surely, 2^57609240 is an apocalyptic number.

It is an amenable number.

57609240 is an abundant number, since it is smaller than the sum of its proper divisors (128517960).

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

57609240 is a wasteful number, since it uses less digits than its factorization.

57609240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36956 (or 36952 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 57609240 is about 7590.0750984427. The cubic root of 57609240 is about 386.2164034833.

The spelling of 57609240 in words is "fifty-seven million, six hundred nine thousand, two hundred forty".