28955230 has 8 divisors (see below), whose sum is σ = 52119432. Its totient is φ = 11582088.

The previous prime is 28955203. The next prime is 28955249. The reversal of 28955230 is 3255982.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1447752 + ... + 1447771.

It is an arithmetic number, because the mean of its divisors is an integer number (6514929).

Almost surely, 2^28955230 is an apocalyptic number.

28955230 is a deficient number, since it is larger than the sum of its proper divisors (23164202).

28955230 is a wasteful number, since it uses less digits than its factorization.

28955230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2895530.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 28955230 is about 5381.0064114439. The cubic root of 28955230 is about 307.0735004229.

The spelling of 28955230 in words is "twenty-eight million, nine hundred fifty-five thousand, two hundred thirty".