22223138 has 16 divisors (see below), whose sum is σ = 38448960. Its totient is φ = 9436176.

The previous prime is 22223137. The next prime is 22223143. The reversal of 22223138 is 83132222.

It is not an unprimeable number, because it can be changed into a prime (22223137) 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, 5756 + ... + 8807.

It is an arithmetic number, because the mean of its divisors is an integer number (2403060).

Almost surely, 2^22223138 is an apocalyptic number.

22223138 is a deficient number, since it is larger than the sum of its proper divisors (16225822).

22223138 is a wasteful number, since it uses less digits than its factorization.

22223138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14681.

The product of its digits is 1152, while the sum is 23.

The square root of 22223138 is about 4714.1423398111. The cubic root of 22223138 is about 281.1480836987.

The spelling of 22223138 in words is "twenty-two million, two hundred twenty-three thousand, one hundred thirty-eight".