57745644 has 24 divisors (see below), whose sum is σ = 146989248. Its totient is φ = 17498640.

The previous prime is 57745643. The next prime is 57745661. The reversal of 57745644 is 44654775.

It is a junction number, because it is equal to n+sod(n) for n = 57745596 and 57745605.

It is not an unprimeable number, because it can be changed into a prime (57745643) 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, 218602 + ... + 218865.

It is an arithmetic number, because the mean of its divisors is an integer number (6124552).

Almost surely, 2^57745644 is an apocalyptic number.

It is an amenable number.

57745644 is an abundant number, since it is smaller than the sum of its proper divisors (89243604).

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

57745644 is a wasteful number, since it uses less digits than its factorization.

57745644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437485 (or 437483 counting only the distinct ones).

The product of its digits is 470400, while the sum is 42.

The square root of 57745644 is about 7599.0554676223. The cubic root of 57745644 is about 386.5209838952.

The spelling of 57745644 in words is "fifty-seven million, seven hundred forty-five thousand, six hundred forty-four".