45664520 has 64 divisors (see below), whose sum is σ = 113832000. Its totient is φ = 16346880.

The previous prime is 45664517. The next prime is 45664537. The reversal of 45664520 is 2546654.

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, 28706 + ... + 30254.

It is an arithmetic number, because the mean of its divisors is an integer number (1778625).

Almost surely, 2^45664520 is an apocalyptic number.

45664520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45664520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56916000).

45664520 is an abundant number, since it is smaller than the sum of its proper divisors (68167480).

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

45664520 is a wasteful number, since it uses less digits than its factorization.

45664520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638 (or 1634 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 45664520 is about 6757.5528114843. The cubic root of 45664520 is about 357.4316168289.

The spelling of 45664520 in words is "forty-five million, six hundred sixty-four thousand, five hundred twenty".