242339 has 4 divisors (see below), whose sum is σ = 246024. Its totient is φ = 238656.

The previous prime is 242329. The next prime is 242357. The reversal of 242339 is 933242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242339 - 2⁸ = 242083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1742 + ... + 1875.

It is an arithmetic number, because the mean of its divisors is an integer number (61506).

2²⁴²³³⁹ is an apocalyptic number.

242339 is a deficient number, since it is larger than the sum of its proper divisors (3685).

242339 is an equidigital number, since it uses as much as digits as its factorization.

242339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684.

The product of its digits is 1296, while the sum is 23.

The square root of 242339 is about 492.2793922154. The cubic root of 242339 is about 62.3458816060.

It can be divided in two parts, 24233 and 9, that added together give a palindrome (24242).

The spelling of 242339 in words is "two hundred forty-two thousand, three hundred thirty-nine".