45472972 has 6 divisors (see below), whose sum is σ = 79577708. Its totient is φ = 22736484.

The previous prime is 45472969. The next prime is 45472997. The reversal of 45472972 is 27927454.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5684118 + ... + 5684125.

Almost surely, 2^45472972 is an apocalyptic number.

It is an amenable number.

45472972 is a deficient number, since it is larger than the sum of its proper divisors (34104736).

45472972 is a wasteful number, since it uses less digits than its factorization.

45472972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11368247 (or 11368245 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 45472972 is about 6743.3650353514. The cubic root of 45472972 is about 356.9311461130.

The spelling of 45472972 in words is "forty-five million, four hundred seventy-two thousand, nine hundred seventy-two".