286236 has 18 divisors (see below), whose sum is σ = 723632. Its totient is φ = 95400.

The previous prime is 286199. The next prime is 286243. The reversal of 286236 is 632682.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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 286236.

It is an unprimeable number.

286236 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 5 ways as a sum of consecutive naturals, for example, 3940 + ... + 4011.

2²⁸⁶²³⁶ is an apocalyptic number.

It is an amenable number.

286236 is an abundant number, since it is smaller than the sum of its proper divisors (437396).

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

286236 is a wasteful number, since it uses less digits than its factorization.

286236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7961 (or 7956 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 286236 is about 535.0102802751. The cubic root of 286236 is about 65.9034400661.

The spelling of 286236 in words is "two hundred eighty-six thousand, two hundred thirty-six".