22424244 has 12 divisors (see below), whose sum is σ = 52323264. Its totient is φ = 7474744.

The previous prime is 22424239. The next prime is 22424249. The reversal of 22424244 is 44242422.

It is an interprime number because it is at equal distance from previous prime (22424239) and next prime (22424249).

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (22424249) 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, 934332 + ... + 934355.

It is an arithmetic number, because the mean of its divisors is an integer number (4360272).

Almost surely, 2^22424244 is an apocalyptic number.

It is an amenable number.

22424244 is an abundant number, since it is smaller than the sum of its proper divisors (29899020).

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

22424244 is a wasteful number, since it uses less digits than its factorization.

22424244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868694 (or 1868692 counting only the distinct ones).

The product of its digits is 4096, while the sum is 24.

The square root of 22424244 is about 4735.4243738022. The cubic root of 22424244 is about 281.9936118466.

Adding to 22424244 its reverse (44242422), we get a palindrome (66666666).

The spelling of 22424244 in words is "twenty-two million, four hundred twenty-four thousand, two hundred forty-four".