22323138 has 16 divisors (see below), whose sum is σ = 46996320. Its totient is φ = 7049376.

The previous prime is 22323101. The next prime is 22323139. The reversal of 22323138 is 83132322.

It is a super-3 number, since 3×22323138³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22323139) 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 7 ways as a sum of consecutive naturals, for example, 97795 + ... + 98022.

It is an arithmetic number, because the mean of its divisors is an integer number (2937270).

Almost surely, 2^22323138 is an apocalyptic number.

22323138 is an abundant number, since it is smaller than the sum of its proper divisors (24673182).

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

22323138 is a wasteful number, since it uses less digits than its factorization.

22323138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195841.

The product of its digits is 1728, while the sum is 24.

The square root of 22323138 is about 4724.7368180672. The cubic root of 22323138 is about 281.5691574912.

The spelling of 22323138 in words is "twenty-two million, three hundred twenty-three thousand, one hundred thirty-eight".