285494 has 16 divisors (see below), whose sum is σ = 492480. Its totient is φ = 122760.

The previous prime is 285473. The next prime is 285497. The reversal of 285494 is 494582.

It is a self number, because there is not a number n which added to its sum of digits gives 285494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285497) 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, 77 + ... + 759.

It is an arithmetic number, because the mean of its divisors is an integer number (30780).

2²⁸⁵⁴⁹⁴ is an apocalyptic number.

285494 is a deficient number, since it is larger than the sum of its proper divisors (206986).

285494 is a wasteful number, since it uses less digits than its factorization.

285494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715.

The product of its digits is 11520, while the sum is 32.

The square root of 285494 is about 534.3163856743. The cubic root of 285494 is about 65.8464443612.

The spelling of 285494 in words is "two hundred eighty-five thousand, four hundred ninety-four".