240239 has 4 divisors (see below), whose sum is σ = 243360. Its totient is φ = 237120.

The previous prime is 240209. The next prime is 240257. The reversal of 240239 is 932042.

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 240239 - 2¹² = 236143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240209) 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, 1442 + ... + 1599.

It is an arithmetic number, because the mean of its divisors is an integer number (60840).

2²⁴⁰²³⁹ is an apocalyptic number.

240239 is a deficient number, since it is larger than the sum of its proper divisors (3121).

240239 is an equidigital number, since it uses as much as digits as its factorization.

240239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 240239 is about 490.1418162124. The cubic root of 240239 is about 62.1652718467.

The spelling of 240239 in words is "two hundred forty thousand, two hundred thirty-nine".