22238 has 4 divisors (see below), whose sum is σ = 33360. Its totient is φ = 11118.

The previous prime is 22229. The next prime is 22247. The reversal of 22238 is 83222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83222 = 2 ⋅41611.

It is an interprime number because it is at equal distance from previous prime (22229) and next prime (22247).

It is a plaindrome in base 9, base 10 and base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5558 + ... + 5561.

It is an arithmetic number, because the mean of its divisors is an integer number (8340).

2²²²³⁸ is an apocalyptic number.

22238 is a deficient number, since it is larger than the sum of its proper divisors (11122).

22238 is a wasteful number, since it uses less digits than its factorization.

22238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11121.

The product of its digits is 192, while the sum is 17.

The square root of 22238 is about 149.1241093854. The cubic root of 22238 is about 28.1210743492.

The spelling of 22238 in words is "twenty-two thousand, two hundred thirty-eight".