57644468 has 24 divisors (see below), whose sum is σ = 115897152. Its totient is φ = 24574464.

The previous prime is 57644453. The next prime is 57644471. The reversal of 57644468 is 86444675.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71 + ... + 10737.

It is an arithmetic number, because the mean of its divisors is an integer number (4829048).

Almost surely, 2^57644468 is an apocalyptic number.

It is an amenable number.

57644468 is an abundant number, since it is smaller than the sum of its proper divisors (58252684).

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

57644468 is a wasteful number, since it uses less digits than its factorization.

57644468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10871 (or 10869 counting only the distinct ones).

The product of its digits is 645120, while the sum is 44.

The square root of 57644468 is about 7592.3954059309. The cubic root of 57644468 is about 386.2951111068.

The spelling of 57644468 in words is "fifty-seven million, six hundred forty-four thousand, four hundred sixty-eight".