57449660 has 24 divisors (see below), whose sum is σ = 120948576. Its totient is φ = 22921920.

The previous prime is 57449659. The next prime is 57449663. The reversal of 57449660 is 6694475.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57449663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5009 + ... + 11831.

It is an arithmetic number, because the mean of its divisors is an integer number (5039524).

Almost surely, 2^57449660 is an apocalyptic number.

It is an amenable number.

57449660 is an abundant number, since it is smaller than the sum of its proper divisors (63498916).

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

57449660 is a wasteful number, since it uses less digits than its factorization.

57449660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7253 (or 7251 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 57449660 is about 7579.5553959319. Note that the first 3 decimals coincide. The cubic root of 57449660 is about 385.8594618449.

The spelling of 57449660 in words is "fifty-seven million, four hundred forty-nine thousand, six hundred sixty".