22043224 has 16 divisors (see below), whose sum is σ = 47235600. Its totient is φ = 9447072.

The previous prime is 22043213. The next prime is 22043227. The reversal of 22043224 is 42234022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22043227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196759 + ... + 196870.

It is an arithmetic number, because the mean of its divisors is an integer number (2952225).

Almost surely, 2^22043224 is an apocalyptic number.

It is an amenable number.

22043224 is an abundant number, since it is smaller than the sum of its proper divisors (25192376).

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

22043224 is a wasteful number, since it uses less digits than its factorization.

22043224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393642 (or 393638 counting only the distinct ones).

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

The square root of 22043224 is about 4695.0211927104. The cubic root of 22043224 is about 280.3873211185.

Adding to 22043224 its reverse (42234022), we get a palindrome (64277246).

The spelling of 22043224 in words is "twenty-two million, forty-three thousand, two hundred twenty-four".