22044444 has 24 divisors (see below), whose sum is σ = 54463248. Its totient is φ = 6915840.

The previous prime is 22044443. The next prime is 22044469. The reversal of 22044444 is 44444022.

It is a super-2 number, since 2×22044444² = 971915022538272, which contains 22 as substring.

22044444 is a modest number, since divided by 4444 gives 2204 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22044443) 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, 53827 + ... + 54234.

It is an arithmetic number, because the mean of its divisors is an integer number (2269302).

Almost surely, 2^22044444 is an apocalyptic number.

It is an amenable number.

22044444 is an abundant number, since it is smaller than the sum of its proper divisors (32418804).

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

22044444 is a wasteful number, since it uses less digits than its factorization.

22044444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108085 (or 108083 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 22044444 is about 4695.1511157789. The cubic root of 22044444 is about 280.3924937772.

Adding to 22044444 its reverse (44444022), we get a palindrome (66488466).

The spelling of 22044444 in words is "twenty-two million, forty-four thousand, four hundred forty-four".