22232224 has 24 divisors (see below), whose sum is σ = 50023008. Its totient is φ = 9528000.

The previous prime is 22232219. The next prime is 22232233. The reversal of 22232224 is 42223222.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 49402 + ... + 49849.

It is an arithmetic number, because the mean of its divisors is an integer number (2084292).

Almost surely, 2^22232224 is an apocalyptic number.

It is an amenable number.

22232224 is an abundant number, since it is smaller than the sum of its proper divisors (27790784).

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

22232224 is an equidigital number, since it uses as much as digits as its factorization.

22232224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99268 (or 99260 counting only the distinct ones).

The product of its digits is 768, while the sum is 19.

The square root of 22232224 is about 4715.1059373041. The cubic root of 22232224 is about 281.1863945713.

Adding to 22232224 its reverse (42223222), we get a palindrome (64455446).

The spelling of 22232224 in words is "twenty-two million, two hundred thirty-two thousand, two hundred twenty-four".