22641244 has 12 divisors (see below), whose sum is σ = 40068000. Its totient is φ = 11193248.

The previous prime is 22641239. The next prime is 22641247. The reversal of 22641244 is 44214622.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22641247) 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, 31444 + ... + 32155.

It is an arithmetic number, because the mean of its divisors is an integer number (3339000).

Almost surely, 2^22641244 is an apocalyptic number.

It is an amenable number.

22641244 is a deficient number, since it is larger than the sum of its proper divisors (17426756).

22641244 is a wasteful number, since it uses less digits than its factorization.

22641244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63692 (or 63690 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 22641244 is about 4758.2816226028. The cubic root of 22641244 is about 282.9003132519.

Adding to 22641244 its reverse (44214622), we get a palindrome (66855866).

The spelling of 22641244 in words is "twenty-two million, six hundred forty-one thousand, two hundred forty-four".