45921864 has 32 divisors (see below), whose sum is σ = 116100000. Its totient is φ = 15134592.

The previous prime is 45921859. The next prime is 45921871. The reversal of 45921864 is 46812954.

45921864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8614 + ... + 12885.

It is an arithmetic number, because the mean of its divisors is an integer number (3628125).

Almost surely, 2^45921864 is an apocalyptic number.

It is an amenable number.

45921864 is an abundant number, since it is smaller than the sum of its proper divisors (70178136).

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

45921864 is a wasteful number, since it uses less digits than its factorization.

45921864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21597 (or 21593 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 45921864 is about 6776.5672725946. The cubic root of 45921864 is about 358.1017989167.

The spelling of 45921864 in words is "forty-five million, nine hundred twenty-one thousand, eight hundred sixty-four".