285260 has 24 divisors (see below), whose sum is σ = 635040. Its totient is φ = 107264.

The previous prime is 285251. The next prime is 285281. The reversal of 285260 is 62582.

It is a happy number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 285260.

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, 80 + ... + 759.

It is an arithmetic number, because the mean of its divisors is an integer number (26460).

2²⁸⁵²⁶⁰ is an apocalyptic number.

285260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285260 is an abundant number, since it is smaller than the sum of its proper divisors (349780).

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

285260 is a wasteful number, since it uses less digits than its factorization.

285260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 285260 is about 534.0973694000. The cubic root of 285260 is about 65.8284494944.

It can be divided in two parts, 285 and 260, that added together give a palindrome (545).

The spelling of 285260 in words is "two hundred eighty-five thousand, two hundred sixty".