45881664 has 28 divisors (see below), whose sum is σ = 121395744. Its totient is φ = 15293824.

The previous prime is 45881663. The next prime is 45881677. The reversal of 45881664 is 46618854.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45881663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119292 + ... + 119675.

Almost surely, 2^45881664 is an apocalyptic number.

It is an amenable number.

45881664 is an abundant number, since it is smaller than the sum of its proper divisors (75514080).

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

45881664 is a wasteful number, since it uses less digits than its factorization.

45881664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238982 (or 238972 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 45881664 is about 6773.6005196646. The cubic root of 45881664 is about 357.9972743049.

The spelling of 45881664 in words is "forty-five million, eight hundred eighty-one thousand, six hundred sixty-four".