223705028 has 12 divisors (see below), whose sum is σ = 391590780. Its totient is φ = 111821952.

The previous prime is 223705019. The next prime is 223705033. The reversal of 223705028 is 820507322.

It can be written as a sum of positive squares in 2 ways, for example, as 122058304 + 101646724 = 11048^2 + 10082^2 .

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, 19688 + ... + 28896.

It is an arithmetic number, because the mean of its divisors is an integer number (32632565).

Almost surely, 2^223705028 is an apocalyptic number.

It is an amenable number.

223705028 is a deficient number, since it is larger than the sum of its proper divisors (167885752).

223705028 is a wasteful number, since it uses less digits than its factorization.

223705028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15286 (or 15284 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 223705028 is about 14956.7719779370. The cubic root of 223705028 is about 607.0510972983.

The spelling of 223705028 in words is "two hundred twenty-three million, seven hundred five thousand, twenty-eight".