22678164 has 24 divisors (see below), whose sum is σ = 58795520. Its totient is φ = 7559352.

The previous prime is 22678147. The next prime is 22678169. The reversal of 22678164 is 46187622.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 (22678169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104884 + ... + 105099.

Almost surely, 2^22678164 is an apocalyptic number.

It is an amenable number.

22678164 is an abundant number, since it is smaller than the sum of its proper divisors (36117356).

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

22678164 is a wasteful number, since it uses less digits than its factorization.

22678164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209996 (or 209988 counting only the distinct ones).

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

The square root of 22678164 is about 4762.1595941337. The cubic root of 22678164 is about 283.0540004417.

The spelling of 22678164 in words is "twenty-two million, six hundred seventy-eight thousand, one hundred sixty-four".