22423424 has 32 divisors (see below), whose sum is σ = 44982000. Its totient is φ = 11133952.

The previous prime is 22423403. The next prime is 22423441. The reversal of 22423424 is 42432422.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 22423424.

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, 20852 + ... + 21900.

Almost surely, 2^22423424 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 22423424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22491000).

22423424 is an abundant number, since it is smaller than the sum of its proper divisors (22558576).

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

22423424 is a wasteful number, since it uses less digits than its factorization.

22423424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230 (or 1218 counting only the distinct ones).

The product of its digits is 3072, while the sum is 23.

The square root of 22423424 is about 4735.3377915414. The cubic root of 22423424 is about 281.9901745315.

Adding to 22423424 its reverse (42432422), we get a palindrome (64855846).

The spelling of 22423424 in words is "twenty-two million, four hundred twenty-three thousand, four hundred twenty-four".