22866738 has 16 divisors (see below), whose sum is σ = 47722176. Its totient is φ = 7290800.

The previous prime is 22866737. The next prime is 22866743. The reversal of 22866738 is 83766822.

It is a self number, because there is not a number n which added to its sum of digits gives 22866738.

It is not an unprimeable number, because it can be changed into a prime (22866733) 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, 82713 + ... + 82988.

It is an arithmetic number, because the mean of its divisors is an integer number (2982636).

Almost surely, 2^22866738 is an apocalyptic number.

22866738 is an abundant number, since it is smaller than the sum of its proper divisors (24855438).

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

22866738 is a wasteful number, since it uses less digits than its factorization.

22866738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165729.

The product of its digits is 193536, while the sum is 42.

The square root of 22866738 is about 4781.9178161068. The cubic root of 22866738 is about 283.8363882719.

It can be divided in two parts, 228 and 66738, that added together give a palindrome (66966).

The spelling of 22866738 in words is "twenty-two million, eight hundred sixty-six thousand, seven hundred thirty-eight".