285894 has 24 divisors (see below), whose sum is σ = 708240. Its totient is φ = 81648.

The previous prime is 285871. The next prime is 285937. The reversal of 285894 is 498582.

It is a d-powerful number, because it can be written as 2¹⁸ + 8² + 8⁴ + 5⁵ + 9² + 4⁷ .

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 285894.

It is an unprimeable number.

285894 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1009 + ... + 1260.

It is an arithmetic number, because the mean of its divisors is an integer number (29510).

2²⁸⁵⁸⁹⁴ is an apocalyptic number.

285894 is an abundant number, since it is smaller than the sum of its proper divisors (422346).

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

285894 is a wasteful number, since it uses less digits than its factorization.

285894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284 (or 2281 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 285894 is about 534.6905647194. The cubic root of 285894 is about 65.8771820609.

The spelling of 285894 in words is "two hundred eighty-five thousand, eight hundred ninety-four".