57616644 has 48 divisors (see below), whose sum is σ = 138692736. Its totient is φ = 18604800.

The previous prime is 57616639. The next prime is 57616673. The reversal of 57616644 is 44661675.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88729 + ... + 89375.

It is an arithmetic number, because the mean of its divisors is an integer number (2889432).

Almost surely, 2^57616644 is an apocalyptic number.

It is an amenable number.

57616644 is an abundant number, since it is smaller than the sum of its proper divisors (81076092).

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

57616644 is a wasteful number, since it uses less digits than its factorization.

57616644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876 (or 874 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 57616644 is about 7590.5628249821. The cubic root of 57616644 is about 386.2329484204.

The spelling of 57616644 in words is "fifty-seven million, six hundred sixteen thousand, six hundred forty-four".