22013144 has 16 divisors (see below), whose sum is σ = 41325720. Its totient is φ = 10992960.

The previous prime is 22013143. The next prime is 22013149. The reversal of 22013144 is 44131022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22013143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9527 + ... + 11609.

Almost surely, 2^22013144 is an apocalyptic number.

It is an amenable number.

22013144 is a deficient number, since it is larger than the sum of its proper divisors (19312576).

22013144 is a wasteful number, since it uses less digits than its factorization.

22013144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410 (or 3406 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 22013144 is about 4691.8167057122. The cubic root of 22013144 is about 280.2597249938.

Adding to 22013144 its reverse (44131022), we get a palindrome (66144166).

The spelling of 22013144 in words is "twenty-two million, thirteen thousand, one hundred forty-four".