222928 has 10 divisors (see below), whose sum is σ = 431954. Its totient is φ = 111456.

The previous prime is 222919. The next prime is 222931. The reversal of 222928 is 829222.

222928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 222784 + 144 = 472^2 + 12^2 .

It is a nialpdrome in base 8.

It is a congruent number.

It is an unprimeable number.

222928 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6951 + ... + 6982.

2²²²⁹²⁸ is an apocalyptic number.

It is an amenable number.

222928 is a deficient number, since it is larger than the sum of its proper divisors (209026).

222928 is a wasteful number, since it uses less digits than its factorization.

222928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13941 (or 13935 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 222928 is about 472.1525177313. The cubic root of 222928 is about 60.6347428278.

The spelling of 222928 in words is "two hundred twenty-two thousand, nine hundred twenty-eight".