22232244 has 12 divisors (see below), whose sum is σ = 51875264. Its totient is φ = 7410744.

The previous prime is 22232233. The next prime is 22232257. The reversal of 22232244 is 44223222.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 22232244.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926332 + ... + 926355.

Almost surely, 2^22232244 is an apocalyptic number.

It is an amenable number.

22232244 is an abundant number, since it is smaller than the sum of its proper divisors (29643020).

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

22232244 is a wasteful number, since it uses less digits than its factorization.

22232244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852694 (or 1852692 counting only the distinct ones).

The product of its digits is 1536, while the sum is 21.

The square root of 22232244 is about 4715.1080581467. The cubic root of 22232244 is about 281.1864788892.

Adding to 22232244 its reverse (44223222), we get a palindrome (66455466).

The spelling of 22232244 in words is "twenty-two million, two hundred thirty-two thousand, two hundred forty-four".