242286 has 16 divisors (see below), whose sum is σ = 528768. Its totient is φ = 73400.

The previous prime is 242279. The next prime is 242309. The reversal of 242286 is 682242.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

242286 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1770 + ... + 1901.

It is an arithmetic number, because the mean of its divisors is an integer number (33048).

2²⁴²²⁸⁶ is an apocalyptic number.

242286 is an abundant number, since it is smaller than the sum of its proper divisors (286482).

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

242286 is a wasteful number, since it uses less digits than its factorization.

242286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3687.

The product of its digits is 1536, while the sum is 24.

The square root of 242286 is about 492.2255580524. The cubic root of 242286 is about 62.3413362204.

It can be divided in two parts, 242 and 286, that added together give a triangular number (528 = T₃₂).

The spelling of 242286 in words is "two hundred forty-two thousand, two hundred eighty-six".