22432 has 12 divisors (see below), whose sum is σ = 44226. Its totient is φ = 11200.

The previous prime is 22409. The next prime is 22433. The reversal of 22432 is 23422.

It can be written as a sum of positive squares in only one way, i.e., 15376 + 7056 = 124^2 + 84^2 .

It is not an unprimeable number, because it can be changed into a prime (22433) by changing a digit.

22432 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319 + ... + 382.

2²²⁴³² is an apocalyptic number.

It is an amenable number.

22432 is a deficient number, since it is larger than the sum of its proper divisors (21794).

22432 is an equidigital number, since it uses as much as digits as its factorization.

22432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711 (or 703 counting only the distinct ones).

The product of its digits is 96, while the sum is 13.

The square root of 22432 is about 149.7731618148. The cubic root of 22432 is about 28.2026119674.

Adding to 22432 its reverse (23422), we get a palindrome (45854).

Subtracting 22432 from its reverse (23422), we obtain a triangular number (990 = T₄₄).

It can be divided in two parts, 224 and 32, that added together give a 8-th power (256 = 2⁸).

The spelling of 22432 in words is "twenty-two thousand, four hundred thirty-two".