222738928 has 20 divisors (see below), whose sum is σ = 437637168. Its totient is φ = 109800320.

The previous prime is 222738899. The next prime is 222738941. The reversal of 222738928 is 829837222.

222738928 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×222738928² = 99225260093178368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96901 + ... + 99172.

Almost surely, 2^222738928 is an apocalyptic number.

It is an amenable number.

222738928 is a deficient number, since it is larger than the sum of its proper divisors (214898240).

222738928 is a wasteful number, since it uses less digits than its factorization.

222738928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196152 (or 196146 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 222738928 is about 14924.4406260335. The cubic root of 222738928 is about 606.1759592435.

The spelling of 222738928 in words is "two hundred twenty-two million, seven hundred thirty-eight thousand, nine hundred twenty-eight".