285840168 has 32 divisors (see below), whose sum is σ = 716873760. Its totient is φ = 94976960.

The previous prime is 285840127. The next prime is 285840169. The reversal of 285840168 is 861048582.

It is not an unprimeable number, because it can be changed into a prime (285840169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11178 + ... + 26393.

It is an arithmetic number, because the mean of its divisors is an integer number (22402305).

Almost surely, 2^285840168 is an apocalyptic number.

It is an amenable number.

285840168 is an abundant number, since it is smaller than the sum of its proper divisors (431033592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285840168 is a wasteful number, since it uses less digits than its factorization.

285840168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37897 (or 37893 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

The square root of 285840168 is about 16906.8083327398. The cubic root of 285840168 is about 658.7304705158.

The spelling of 285840168 in words is "two hundred eighty-five million, eight hundred forty thousand, one hundred sixty-eight".