242285 has 8 divisors (see below), whose sum is σ = 297216. Its totient is φ = 189520.

The previous prime is 242279. The next prime is 242309. The reversal of 242285 is 582242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 242285 - 2¹⁰ = 241261 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 4⁴ + 2¹⁶ + 2¹⁶ + 8² + 5⁷ .

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 242285.

It is a congruent number.

It is an unprimeable 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, 281 + ... + 750.

It is an arithmetic number, because the mean of its divisors is an integer number (37152).

2²⁴²²⁸⁵ is an apocalyptic number.

It is an amenable number.

242285 is a deficient number, since it is larger than the sum of its proper divisors (54931).

242285 is a wasteful number, since it uses less digits than its factorization.

242285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083.

The product of its digits is 1280, while the sum is 23.

The square root of 242285 is about 492.2245422569. The cubic root of 242285 is about 62.3412504520.

The spelling of 242285 in words is "two hundred forty-two thousand, two hundred eighty-five".