22243224 has 32 divisors (see below), whose sum is σ = 58536000. Its totient is φ = 7024032.

The previous prime is 22243219. The next prime is 22243229. The reversal of 22243224 is 42234222.

It is an interprime number because it is at equal distance from previous prime (22243219) and next prime (22243229).

It is a super-2 number, since 2×22243224² = 989522027828352, which contains 22 as substring.

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 22243224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22243229) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23934 + ... + 24845.

It is an arithmetic number, because the mean of its divisors is an integer number (1829250).

Almost surely, 2^22243224 is an apocalyptic number.

22243224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22243224 is an abundant number, since it is smaller than the sum of its proper divisors (36292776).

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

22243224 is a wasteful number, since it uses less digits than its factorization.

22243224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48807 (or 48803 counting only the distinct ones).

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

The square root of 22243224 is about 4716.2722567723. The cubic root of 22243224 is about 281.2327618077.

Adding to 22243224 its reverse (42234222), we get a palindrome (64477446).

The spelling of 22243224 in words is "twenty-two million, two hundred forty-three thousand, two hundred twenty-four".