242685 has 12 divisors (see below), whose sum is σ = 420732. Its totient is φ = 129408.

The previous prime is 242681. The next prime is 242689. The reversal of 242685 is 586242.

It is an interprime number because it is at equal distance from previous prime (242681) and next prime (242689).

It can be written as a sum of positive squares in 2 ways, for example, as 171396 + 71289 = 414^2 + 267^2 .

It is not a de Polignac number, because 242685 - 2² = 242681 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2652 + ... + 2741.

It is an arithmetic number, because the mean of its divisors is an integer number (35061).

2²⁴²⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

242685 is a deficient number, since it is larger than the sum of its proper divisors (178047).

242685 is a wasteful number, since it uses less digits than its factorization.

242685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404 (or 5401 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 242685 is about 492.6306933190. The cubic root of 242685 is about 62.3755389825.

The spelling of 242685 in words is "two hundred forty-two thousand, six hundred eighty-five".