45217672 has 16 divisors (see below), whose sum is σ = 85404060. Its totient is φ = 22443264.

The previous prime is 45217661. The next prime is 45217681. The reversal of 45217672 is 27671254.

It can be written as a sum of positive squares in 2 ways, for example, as 45077796 + 139876 = 6714^2 + 374^2 .

It is a super-2 number, since 2×45217672² = 4089275722199168, which contains 22 as substring.

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, 19533 + ... + 21724.

Almost surely, 2^45217672 is an apocalyptic number.

It is an amenable number.

45217672 is a deficient number, since it is larger than the sum of its proper divisors (40186388).

45217672 is a wasteful number, since it uses less digits than its factorization.

45217672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41400 (or 41396 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 45217672 is about 6724.4086728872. The cubic root of 45217672 is about 356.2619164168.

The spelling of 45217672 in words is "forty-five million, two hundred seventeen thousand, six hundred seventy-two".