22392 has 24 divisors (see below), whose sum is σ = 60840. Its totient is φ = 7440.

The previous prime is 22391. The next prime is 22397. The reversal of 22392 is 29322.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22391) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84 + ... + 227.

It is an arithmetic number, because the mean of its divisors is an integer number (2535).

2²²³⁹² is an apocalyptic number.

It is an amenable number.

22392 is an abundant number, since it is smaller than the sum of its proper divisors (38448).

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

22392 is a wasteful number, since it uses less digits than its factorization.

22392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 316 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 22392 is about 149.6395669601. The cubic root of 22392 is about 28.1858386721.

It can be divided in two parts, 22 and 392, that added together give a palindrome (414).

The spelling of 22392 in words is "twenty-two thousand, three hundred ninety-two".