285460 has 24 divisors (see below), whose sum is σ = 685440. Its totient is φ = 97824.

The previous prime is 285457. The next prime is 285463. The reversal of 285460 is 64582.

It is an interprime number because it is at equal distance from previous prime (285457) and next prime (285463).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285463) 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, 880 + ... + 1159.

It is an arithmetic number, because the mean of its divisors is an integer number (28560).

2²⁸⁵⁴⁶⁰ is an apocalyptic number.

285460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285460 is an abundant number, since it is smaller than the sum of its proper divisors (399980).

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

285460 is a wasteful number, since it uses less digits than its factorization.

285460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055 (or 2053 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 285460 is about 534.2845683716. The cubic root of 285460 is about 65.8438303332.

The spelling of 285460 in words is "two hundred eighty-five thousand, four hundred sixty".