22668813 has 12 divisors (see below), whose sum is σ = 33159360. Its totient is φ = 14920776.

The previous prime is 22668797. The next prime is 22668829. The reversal of 22668813 is 31886622.

It is an interprime number because it is at equal distance from previous prime (22668797) and next prime (22668829).

It is not a de Polignac number, because 22668813 - 2⁴ = 22668797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22668853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15231 + ... + 16652.

It is an arithmetic number, because the mean of its divisors is an integer number (2763280).

Almost surely, 2^22668813 is an apocalyptic number.

It is an amenable number.

22668813 is a deficient number, since it is larger than the sum of its proper divisors (10490547).

22668813 is a wasteful number, since it uses less digits than its factorization.

22668813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31968 (or 31965 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 22668813 is about 4761.1776904459. The cubic root of 22668813 is about 283.0150907393.

The spelling of 22668813 in words is "twenty-two million, six hundred sixty-eight thousand, eight hundred thirteen".