45044872 has 16 divisors (see below), whose sum is σ = 84594060. Its totient is φ = 22486464.

The previous prime is 45044861. The next prime is 45044911. The reversal of 45044872 is 27844054.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27185796 + 17859076 = 5214^2 + 4226^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1258 + ... + 9574.

Almost surely, 2^45044872 is an apocalyptic number.

It is an amenable number.

45044872 is a deficient number, since it is larger than the sum of its proper divisors (39549188).

45044872 is a wasteful number, since it uses less digits than its factorization.

45044872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9000 (or 8996 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 45044872 is about 6711.5476605624. The cubic root of 45044872 is about 355.8075170382.

The spelling of 45044872 in words is "forty-five million, forty-four thousand, eight hundred seventy-two".