22421344 has 24 divisors (see below), whose sum is σ = 48155688. Its totient is φ = 10191360.

The previous prime is 22421341. The next prime is 22421353. The reversal of 22421344 is 44312422.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22421341) 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, 31497 + ... + 32200.

It is an arithmetic number, because the mean of its divisors is an integer number (2006487).

Almost surely, 2^22421344 is an apocalyptic number.

It is an amenable number.

22421344 is an abundant number, since it is smaller than the sum of its proper divisors (25734344).

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

22421344 is a wasteful number, since it uses less digits than its factorization.

22421344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63718 (or 63710 counting only the distinct ones).

The product of its digits is 1536, while the sum is 22.

The square root of 22421344 is about 4735.1181611445. The cubic root of 22421344 is about 281.9814551123.

Adding to 22421344 its reverse (44312422), we get a palindrome (66733766).

The spelling of 22421344 in words is "twenty-two million, four hundred twenty-one thousand, three hundred forty-four".