285494284 has 12 divisors (see below), whose sum is σ = 499734144. Its totient is φ = 142713104.

The previous prime is 285494263. The next prime is 285494317. The reversal of 285494284 is 482494582.

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, 25182 + ... + 34714.

It is an arithmetic number, because the mean of its divisors is an integer number (41644512).

Almost surely, 2^285494284 is an apocalyptic number.

It is an amenable number.

285494284 is a deficient number, since it is larger than the sum of its proper divisors (214239860).

285494284 is a wasteful number, since it uses less digits than its factorization.

285494284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17024 (or 17022 counting only the distinct ones).

The product of its digits is 737280, while the sum is 46.

The square root of 285494284 is about 16896.5761028677. The cubic root of 285494284 is about 658.4646619518.

The spelling of 285494284 in words is "two hundred eighty-five million, four hundred ninety-four thousand, two hundred eighty-four".