22748664 has 16 divisors (see below), whose sum is σ = 56871720. Its totient is φ = 7582880.

The previous prime is 22748659. The next prime is 22748707. The reversal of 22748664 is 46684722.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473907 + ... + 473954.

Almost surely, 2^22748664 is an apocalyptic number.

22748664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22748664 is an abundant number, since it is smaller than the sum of its proper divisors (34123056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22748664 is a wasteful number, since it uses less digits than its factorization.

22748664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947870 (or 947866 counting only the distinct ones).

The product of its digits is 129024, while the sum is 39.

The square root of 22748664 is about 4769.5559541744. Note that the first 3 decimals coincide. The cubic root of 22748664 is about 283.3470086441.

The spelling of 22748664 in words is "twenty-two million, seven hundred forty-eight thousand, six hundred sixty-four".