57644616 has 32 divisors (see below), whose sum is σ = 146145600. Its totient is φ = 18943680.

The previous prime is 57644611. The next prime is 57644617. The reversal of 57644616 is 61644675.

It is not an unprimeable number, because it can be changed into a prime (57644611) 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, 15211 + ... + 18618.

It is an arithmetic number, because the mean of its divisors is an integer number (4567050).

Almost surely, 2^57644616 is an apocalyptic number.

It is an amenable number.

57644616 is an abundant number, since it is smaller than the sum of its proper divisors (88500984).

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

57644616 is a wasteful number, since it uses less digits than its factorization.

57644616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33909 (or 33905 counting only the distinct ones).

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

The square root of 57644616 is about 7592.4051525192. The cubic root of 57644616 is about 386.2954417059.

The spelling of 57644616 in words is "fifty-seven million, six hundred forty-four thousand, six hundred sixteen".