285887460 has 24 divisors (see below), whose sum is σ = 800485056. Its totient is φ = 76236640.

The previous prime is 285887443. The next prime is 285887473. The reversal of 285887460 is 64788582.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2382336 + ... + 2382455.

It is an arithmetic number, because the mean of its divisors is an integer number (33353544).

Almost surely, 2^285887460 is an apocalyptic number.

285887460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285887460 is an abundant number, since it is smaller than the sum of its proper divisors (514597596).

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

285887460 is a wasteful number, since it uses less digits than its factorization.

285887460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4764803 (or 4764801 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 48.

The square root of 285887460 is about 16908.2068830494. The cubic root of 285887460 is about 658.7667973014.

The spelling of 285887460 in words is "two hundred eighty-five million, eight hundred eighty-seven thousand, four hundred sixty".