22544224 has 12 divisors (see below), whose sum is σ = 44384004. Its totient is φ = 11272096.

The previous prime is 22544213. The next prime is 22544233. The reversal of 22544224 is 42244522.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352222 + ... + 352285.

It is an arithmetic number, because the mean of its divisors is an integer number (3698667).

Almost surely, 2^22544224 is an apocalyptic number.

It is an amenable number.

22544224 is a deficient number, since it is larger than the sum of its proper divisors (21839780).

22544224 is an equidigital number, since it uses as much as digits as its factorization.

22544224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704517 (or 704509 counting only the distinct ones).

The product of its digits is 5120, while the sum is 25.

The square root of 22544224 is about 4748.0758207931. The cubic root of 22544224 is about 282.4956492921.

Adding to 22544224 its reverse (42244522), we get a palindrome (64788746).

It can be divided in two parts, 2 and 2544224, that multiplied together give a cube (5088448 = 172³).

The spelling of 22544224 in words is "twenty-two million, five hundred forty-four thousand, two hundred twenty-four".