22563244 has 24 divisors (see below), whose sum is σ = 43314768. Its totient is φ = 10199040.

The previous prime is 22563221. The next prime is 22563251. The reversal of 22563244 is 44236522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7164 + ... + 9820.

It is an arithmetic number, because the mean of its divisors is an integer number (1804782).

Almost surely, 2^22563244 is an apocalyptic number.

It is an amenable number.

22563244 is a deficient number, since it is larger than the sum of its proper divisors (20751524).

22563244 is a wasteful number, since it uses less digits than its factorization.

22563244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2865 (or 2863 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 22563244 is about 4750.0783151439. The cubic root of 22563244 is about 282.5750718073.

Adding to 22563244 its reverse (44236522), we get a palindrome (66799766).

The spelling of 22563244 in words is "twenty-two million, five hundred sixty-three thousand, two hundred forty-four".