22388668 has 6 divisors (see below), whose sum is σ = 39180176. Its totient is φ = 11194332.

The previous prime is 22388657. The next prime is 22388687. The reversal of 22388668 is 86688322.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2798580 + ... + 2798587.

Almost surely, 2^22388668 is an apocalyptic number.

It is an amenable number.

22388668 is a deficient number, since it is larger than the sum of its proper divisors (16791508).

22388668 is a wasteful number, since it uses less digits than its factorization.

22388668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5597171 (or 5597169 counting only the distinct ones).

The product of its digits is 221184, while the sum is 43.

The square root of 22388668 is about 4731.6665140308. Note that the first 3 decimals coincide. The cubic root of 22388668 is about 281.8444055565.

The spelling of 22388668 in words is "twenty-two million, three hundred eighty-eight thousand, six hundred sixty-eight".