242345 has 8 divisors (see below), whose sum is σ = 306240. Its totient is φ = 183600.

The previous prime is 242329. The next prime is 242357. The reversal of 242345 is 543242.

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

It is not a de Polignac number, because 242345 - 2⁴ = 242329 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1181 + ... + 1370.

It is an arithmetic number, because the mean of its divisors is an integer number (38280).

2²⁴²³⁴⁵ is an apocalyptic number.

It is an amenable number.

242345 is a deficient number, since it is larger than the sum of its proper divisors (63895).

242345 is a wasteful number, since it uses less digits than its factorization.

242345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575.

The product of its digits is 960, while the sum is 20.

The square root of 242345 is about 492.2854862780. The cubic root of 242345 is about 62.3463961362.

Adding to 242345 its reverse (543242), we get a palindrome (785587).

It can be divided in two parts, 24 and 2345, that multiplied together give a triangular number (56280 = T₃₃₅).

The spelling of 242345 in words is "two hundred forty-two thousand, three hundred forty-five".