45216816 has 20 divisors (see below), whose sum is σ = 116810232. Its totient is φ = 15072256.

The previous prime is 45216803. The next prime is 45216863. The reversal of 45216816 is 61861254.

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, 470961 + ... + 471056.

Almost surely, 2^45216816 is an apocalyptic number.

It is an amenable number.

45216816 is an abundant number, since it is smaller than the sum of its proper divisors (71593416).

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

45216816 is a wasteful number, since it uses less digits than its factorization.

45216816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942028 (or 942022 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 45216816 is about 6724.3450238666. The cubic root of 45216816 is about 356.2596683126.

The spelling of 45216816 in words is "forty-five million, two hundred sixteen thousand, eight hundred sixteen".