45221668 has 12 divisors (see below), whose sum is σ = 79470720. Its totient is φ = 22515752.

The previous prime is 45221663. The next prime is 45221669. The reversal of 45221668 is 86612254.

It is not an unprimeable number, because it can be changed into a prime (45221663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22696 + ... + 24607.

It is an arithmetic number, because the mean of its divisors is an integer number (6622560).

Almost surely, 2^45221668 is an apocalyptic number.

It is an amenable number.

45221668 is a deficient number, since it is larger than the sum of its proper divisors (34249052).

45221668 is a wasteful number, since it uses less digits than its factorization.

45221668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47546 (or 47544 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 45221668 is about 6724.7057928210. The cubic root of 45221668 is about 356.2724106965.

The spelling of 45221668 in words is "forty-five million, two hundred twenty-one thousand, six hundred sixty-eight".