242085 has 8 divisors (see below), whose sum is σ = 387360. Its totient is φ = 129104.

The previous prime is 242083. The next prime is 242093. The reversal of 242085 is 580242.

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

It is a cyclic number.

It is not a de Polignac number, because 242085 - 2¹ = 242083 is a prime.

It is an Ulam number.

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 242085.

It is not an unprimeable number, because it can be changed into a prime (242083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8055 + ... + 8084.

It is an arithmetic number, because the mean of its divisors is an integer number (48420).

2²⁴²⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

242085 is a deficient number, since it is larger than the sum of its proper divisors (145275).

242085 is a wasteful number, since it uses less digits than its factorization.

242085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16147.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 242085 is about 492.0213410006. The cubic root of 242085 is about 62.3240920334.

Subtracting from 242085 its sum of digits (21), we obtain a square (242064 = 492²).

The spelling of 242085 in words is "two hundred forty-two thousand, eighty-five".