22152344 has 32 divisors (see below), whose sum is σ = 43333680. Its totient is φ = 10606464.

The previous prime is 22152331. The next prime is 22152349. The reversal of 22152344 is 44325122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22152349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19274 + ... + 20390.

Almost surely, 2^22152344 is an apocalyptic number.

It is an amenable number.

22152344 is a deficient number, since it is larger than the sum of its proper divisors (21181336).

22152344 is a wasteful number, since it uses less digits than its factorization.

22152344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227 (or 1223 counting only the distinct ones).

The product of its digits is 1920, while the sum is 23.

The square root of 22152344 is about 4706.6276674494. The cubic root of 22152344 is about 280.8492244665.

Adding to 22152344 its reverse (44325122), we get a palindrome (66477466).

The spelling of 22152344 in words is "twenty-two million, one hundred fifty-two thousand, three hundred forty-four".