28856230 has 32 divisors (see below), whose sum is σ = 56788704. Its totient is φ = 10492416.

The previous prime is 28856209. The next prime is 28856273. The reversal of 28856230 is 3265882.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7054 + ... + 10366.

It is an arithmetic number, because the mean of its divisors is an integer number (1774647).

Almost surely, 2^28856230 is an apocalyptic number.

28856230 is a deficient number, since it is larger than the sum of its proper divisors (27932474).

28856230 is a wasteful number, since it uses less digits than its factorization.

28856230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 28856230 is about 5371.7995122677. The cubic root of 28856230 is about 306.7231320622.

The spelling of 28856230 in words is "twenty-eight million, eight hundred fifty-six thousand, two hundred thirty".