22402232 has 16 divisors (see below), whose sum is σ = 42062760. Its totient is φ = 11185504.

The previous prime is 22402223. The next prime is 22402271. The reversal of 22402232 is 23220422.

It is a self number, because there is not a number n which added to its sum of digits gives 22402232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6098 + ... + 9054.

Almost surely, 2^22402232 is an apocalyptic number.

It is an amenable number.

22402232 is a deficient number, since it is larger than the sum of its proper divisors (19660528).

22402232 is a wasteful number, since it uses less digits than its factorization.

22402232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3910 (or 3906 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 22402232 is about 4733.0996186432. The cubic root of 22402232 is about 281.9013118114.

Adding to 22402232 its reverse (23220422), we get a palindrome (45622654).

The spelling of 22402232 in words is "twenty-two million, four hundred two thousand, two hundred thirty-two".