45020972 has 6 divisors (see below), whose sum is σ = 78786708. Its totient is φ = 22510484.

The previous prime is 45020951. The next prime is 45021007. The reversal of 45020972 is 27902054.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5627618 + ... + 5627625.

It is an arithmetic number, because the mean of its divisors is an integer number (13131118).

Almost surely, 2^45020972 is an apocalyptic number.

It is an amenable number.

45020972 is a deficient number, since it is larger than the sum of its proper divisors (33765736).

45020972 is a wasteful number, since it uses less digits than its factorization.

45020972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11255247 (or 11255245 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 45020972 is about 6709.7669110037. The cubic root of 45020972 is about 355.7445775462.

The spelling of 45020972 in words is "forty-five million, twenty thousand, nine hundred seventy-two".