22928 has 10 divisors (see below), whose sum is σ = 44454. Its totient is φ = 11456.

The previous prime is 22921. The next prime is 22937. The reversal of 22928 is 82922.

It can be written as a sum of positive squares in only one way, i.e., 21904 + 1024 = 148^2 + 32^2 .

It is not an unprimeable number, because it can be changed into a prime (22921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701 + ... + 732.

2²²⁹²⁸ is an apocalyptic number.

It is an amenable number.

22928 is a deficient number, since it is larger than the sum of its proper divisors (21526).

22928 is a wasteful number, since it uses less digits than its factorization.

22928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441 (or 1435 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 22928 is about 151.4199458460. The cubic root of 22928 is about 28.4089636455.

It can be divided in two parts, 2292 and 8, that multiplied together give a triangular number (18336 = T₁₉₁).

The spelling of 22928 in words is "twenty-two thousand, nine hundred twenty-eight".