22452224 has 48 divisors (see below), whose sum is σ = 47338200. Its totient is φ = 10616832.

The previous prime is 22452197. The next prime is 22452233. The reversal of 22452224 is 42225422.

It is a self number, because there is not a number n which added to its sum of digits gives 22452224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38624 + ... + 39200.

Almost surely, 2^22452224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22452224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23669100).

22452224 is an abundant number, since it is smaller than the sum of its proper divisors (24885976).

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

22452224 is an equidigital number, since it uses as much as digits as its factorization.

22452224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618 (or 598 counting only the distinct ones).

The product of its digits is 2560, while the sum is 23.

The square root of 22452224 is about 4738.3777814775. The cubic root of 22452224 is about 282.1108495687.

Adding to 22452224 its reverse (42225422), we get a palindrome (64677646).

The spelling of 22452224 in words is "twenty-two million, four hundred fifty-two thousand, two hundred twenty-four".