286830 has 24 divisors (see below), whose sum is σ = 745992. Its totient is φ = 76464.

The previous prime is 286813. The next prime is 286831. The reversal of 286830 is 38682.

It is a junction number, because it is equal to n+sod(n) for n = 286794 and 286803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286831) by changing a digit.

286830 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, 1504 + ... + 1683.

It is an arithmetic number, because the mean of its divisors is an integer number (31083).

2²⁸⁶⁸³⁰ is an apocalyptic number.

286830 is an abundant number, since it is smaller than the sum of its proper divisors (459162).

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

286830 is a wasteful number, since it uses less digits than its factorization.

286830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200 (or 3197 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 286830 is about 535.5651220907. The cubic root of 286830 is about 65.9489964082.

The spelling of 286830 in words is "two hundred eighty-six thousand, eight hundred thirty".