45039218 has 32 divisors (see below), whose sum is σ = 80329728. Its totient is φ = 18532800.

The previous prime is 45039193. The next prime is 45039227. The reversal of 45039218 is 81293054.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67808 + ... + 68468.

It is an arithmetic number, because the mean of its divisors is an integer number (2510304).

Almost surely, 2^45039218 is an apocalyptic number.

45039218 is a deficient number, since it is larger than the sum of its proper divisors (35290510).

45039218 is a wasteful number, since it uses less digits than its factorization.

45039218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 45039218 is about 6711.1264330215. The cubic root of 45039218 is about 355.7926295139.

The spelling of 45039218 in words is "forty-five million, thirty-nine thousand, two hundred eighteen".