22871664 has 60 divisors (see below), whose sum is σ = 67781376. Its totient is φ = 7174656.

The previous prime is 22871663. The next prime is 22871699. The reversal of 22871664 is 46617822.

It is a super-2 number, since 2×22871664² = 1046226028257792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22871663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2224 + ... + 7119.

Almost surely, 2^22871664 is an apocalyptic number.

22871664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22871664 is an abundant number, since it is smaller than the sum of its proper divisors (44909712).

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

22871664 is a wasteful number, since it uses less digits than its factorization.

22871664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9374 (or 9365 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 22871664 is about 4782.4328536844. The cubic root of 22871664 is about 283.8567683491.

The spelling of 22871664 in words is "twenty-two million, eight hundred seventy-one thousand, six hundred sixty-four".