45397872 has 60 divisors (see below), whose sum is σ = 136829784. Its totient is φ = 13968000.

The previous prime is 45397867. The next prime is 45397873. The reversal of 45397872 is 27879354.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45397873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10254 + ... + 13997.

Almost surely, 2^45397872 is an apocalyptic number.

It is an amenable number.

45397872 is an abundant number, since it is smaller than the sum of its proper divisors (91431912).

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

45397872 is a wasteful number, since it uses less digits than its factorization.

45397872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24278 (or 24269 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 45397872 is about 6737.7942978396. The cubic root of 45397872 is about 356.7345436173.

The spelling of 45397872 in words is "forty-five million, three hundred ninety-seven thousand, eight hundred seventy-two".