22292 has 6 divisors (see below), whose sum is σ = 39018. Its totient is φ = 11144.

The previous prime is 22291. The next prime is 22303. The reversal of 22292 is 29222.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13456 + 8836 = 116^2 + 94^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22292.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22291) by changing a digit.

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, 2783 + ... + 2790.

It is an arithmetic number, because the mean of its divisors is an integer number (6503).

2²²²⁹² is an apocalyptic number.

It is an amenable number.

22292 is a deficient number, since it is larger than the sum of its proper divisors (16726).

22292 is a wasteful number, since it uses less digits than its factorization.

22292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5577 (or 5575 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 22292 is about 149.3050568467. The cubic root of 22292 is about 28.1438178592.

The spelling of 22292 in words is "twenty-two thousand, two hundred ninety-two".