45688644 has 24 divisors (see below), whose sum is σ = 118452320. Its totient is φ = 15229512.

The previous prime is 45688627. The next prime is 45688667. The reversal of 45688644 is 44688654.

45688644 is a `hidden beast` number, since 4 + 568 + 86 + 4 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 45688644.

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, 211414 + ... + 211629.

Almost surely, 2^45688644 is an apocalyptic number.

It is an amenable number.

45688644 is an abundant number, since it is smaller than the sum of its proper divisors (72763676).

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

45688644 is a wasteful number, since it uses less digits than its factorization.

45688644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423056 (or 423048 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 45688644 is about 6759.3375415051. The cubic root of 45688644 is about 357.4945479795.

The spelling of 45688644 in words is "forty-five million, six hundred eighty-eight thousand, six hundred forty-four".