285223850 has 24 divisors (see below), whose sum is σ = 532653408. Its totient is φ = 113630000.

The previous prime is 285223849. The next prime is 285223879. The reversal of 285223850 is 58322582.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

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 285223850.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1187 + ... + 23913.

It is an arithmetic number, because the mean of its divisors is an integer number (22193892).

Almost surely, 2^285223850 is an apocalyptic number.

285223850 is a deficient number, since it is larger than the sum of its proper divisors (247429558).

285223850 is a wasteful number, since it uses less digits than its factorization.

285223850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22990 (or 22985 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 285223850 is about 16888.5715796215. The cubic root of 285223850 is about 658.2566864068.

The spelling of 285223850 in words is "two hundred eighty-five million, two hundred twenty-three thousand, eight hundred fifty".