22643668 has 24 divisors (see below), whose sum is σ = 41872320. Its totient is φ = 10684800.

The previous prime is 22643659. The next prime is 22643683. The reversal of 22643668 is 86634622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30105 + ... + 30847.

It is an arithmetic number, because the mean of its divisors is an integer number (1744680).

Almost surely, 2^22643668 is an apocalyptic number.

It is an amenable number.

22643668 is a deficient number, since it is larger than the sum of its proper divisors (19228652).

22643668 is a wasteful number, since it uses less digits than its factorization.

22643668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167 (or 1165 counting only the distinct ones).

The product of its digits is 82944, while the sum is 37.

The square root of 22643668 is about 4758.5363295871. The cubic root of 22643668 is about 282.9104087792.

The spelling of 22643668 in words is "twenty-two million, six hundred forty-three thousand, six hundred sixty-eight".