285105230 has 8 divisors (see below), whose sum is σ = 513189432. Its totient is φ = 114042088.

The previous prime is 285105199. The next prime is 285105259. The reversal of 285105230 is 32501582.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 285105230.

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, 14255252 + ... + 14255271.

It is an arithmetic number, because the mean of its divisors is an integer number (64148679).

Almost surely, 2^285105230 is an apocalyptic number.

285105230 is a deficient number, since it is larger than the sum of its proper divisors (228084202).

285105230 is a wasteful number, since it uses less digits than its factorization.

285105230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28510530.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 285105230 is about 16885.0593721195. The cubic root of 285105230 is about 658.1654209732.

The spelling of 285105230 in words is "two hundred eighty-five million, one hundred five thousand, two hundred thirty".