45640866 has 32 divisors (see below), whose sum is σ = 95846400. Its totient is φ = 14469840.

The previous prime is 45640853. The next prime is 45640877. The reversal of 45640866 is 66804654.

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, 8895 + ... + 13053.

It is an arithmetic number, because the mean of its divisors is an integer number (2995200).

Almost surely, 2^45640866 is an apocalyptic number.

45640866 is an abundant number, since it is smaller than the sum of its proper divisors (50205534).

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

45640866 is a wasteful number, since it uses less digits than its factorization.

45640866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4254.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 45640866 is about 6755.8023949787. The cubic root of 45640866 is about 357.3698902214.

The spelling of 45640866 in words is "forty-five million, six hundred forty thousand, eight hundred sixty-six".