22258 has 8 divisors (see below), whose sum is σ = 34560. Its totient is φ = 10740.

The previous prime is 22247. The next prime is 22259. The reversal of 22258 is 85222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 10 and base 15.

It is not an unprimeable number, because it can be changed into a prime (22259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118 + ... + 241.

It is an arithmetic number, because the mean of its divisors is an integer number (4320).

2²²²⁵⁸ is an apocalyptic number.

22258 is a deficient number, since it is larger than the sum of its proper divisors (12302).

22258 is a wasteful number, since it uses less digits than its factorization.

22258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392.

The product of its digits is 320, while the sum is 19.

The square root of 22258 is about 149.1911525527. The cubic root of 22258 is about 28.1295021599.

Adding to 22258 its product of digits (320), we get a triangular number (22578 = T₂₁₂).

The spelling of 22258 in words is "twenty-two thousand, two hundred fifty-eight".