22144323 has 12 divisors (see below), whose sum is σ = 30512904. Its totient is φ = 14284800.

The previous prime is 22144307. The next prime is 22144327. The reversal of 22144323 is 32344122.

It is not a de Polignac number, because 22144323 - 2⁴ = 22144307 is a prime.

It is a super-2 number, since 2×22144323² = 980742082256658, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22144323.

It is not an unprimeable number, because it can be changed into a prime (22144327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 958 + ... + 6723.

It is an arithmetic number, because the mean of its divisors is an integer number (2542742).

Almost surely, 2^22144323 is an apocalyptic number.

22144323 is a deficient number, since it is larger than the sum of its proper divisors (8368581).

22144323 is an equidigital number, since it uses as much as digits as its factorization.

22144323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7746 (or 7715 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 22144323 is about 4705.7754940073. The cubic root of 22144323 is about 280.8153234103.

Adding to 22144323 its reverse (32344122), we get a palindrome (54488445).

It can be divided in two parts, 221 and 44323, that added together give a palindrome (44544).

The spelling of 22144323 in words is "twenty-two million, one hundred forty-four thousand, three hundred twenty-three".