22044412 has 12 divisors (see below), whose sum is σ = 41545336. Its totient is φ = 10174320.

The previous prime is 22044409. The next prime is 22044413. The reversal of 22044412 is 21444022.

It is a super-2 number, since 2×22044412² = 971912200851488, 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 22044412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22044413) 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, 211914 + ... + 212017.

Almost surely, 2^22044412 is an apocalyptic number.

It is an amenable number.

22044412 is a deficient number, since it is larger than the sum of its proper divisors (19500924).

22044412 is a wasteful number, since it uses less digits than its factorization.

22044412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423948 (or 423946 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 22044412 is about 4695.1477080066. The cubic root of 22044412 is about 280.3923581033.

Adding to 22044412 its reverse (21444022), we get a palindrome (43488434).

The spelling of 22044412 in words is "twenty-two million, forty-four thousand, four hundred twelve".