45218668 has 18 divisors (see below), whose sum is σ = 86981468. Its totient is φ = 20553720.

The previous prime is 45218647. The next prime is 45218707. The reversal of 45218668 is 86681254.

It is a self number, because there is not a number n which added to its sum of digits gives 45218668.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46230 + ... + 47197.

Almost surely, 2^45218668 is an apocalyptic number.

It is an amenable number.

45218668 is a deficient number, since it is larger than the sum of its proper divisors (41762800).

45218668 is a wasteful number, since it uses less digits than its factorization.

45218668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93453 (or 93440 counting only the distinct ones).

The product of its digits is 92160, while the sum is 40.

The square root of 45218668 is about 6724.4827310359. The cubic root of 45218668 is about 356.2645321660.

It can be divided in two parts, 452186 and 68, that added together give a palindrome (452254).

The spelling of 45218668 in words is "forty-five million, two hundred eighteen thousand, six hundred sixty-eight".