45407972 has 24 divisors (see below), whose sum is σ = 80904096. Its totient is φ = 22296128.

The previous prime is 45407941. The next prime is 45407981. The reversal of 45407972 is 27970454.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77063 + ... + 77649.

It is an arithmetic number, because the mean of its divisors is an integer number (3371004).

Almost surely, 2^45407972 is an apocalyptic number.

It is an amenable number.

45407972 is a deficient number, since it is larger than the sum of its proper divisors (35496124).

45407972 is a wasteful number, since it uses less digits than its factorization.

45407972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 45407972 is about 6738.5437595967. The cubic root of 45407972 is about 356.7609967789.

The spelling of 45407972 in words is "forty-five million, four hundred seven thousand, nine hundred seventy-two".