239843345 has 16 divisors (see below), whose sum is σ = 329598720. Its totient is φ = 164128704.

The previous prime is 239843309. The next prime is 239843347. The reversal of 239843345 is 543348932.

It is a cyclic number.

It is not a de Polignac number, because 239843345 - 2²⁰ = 238794769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (239843347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11084 + ... + 24546.

It is an arithmetic number, because the mean of its divisors is an integer number (20599920).

Almost surely, 2^239843345 is an apocalyptic number.

It is an amenable number.

239843345 is a deficient number, since it is larger than the sum of its proper divisors (89755375).

239843345 is a wasteful number, since it uses less digits than its factorization.

239843345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13984.

The product of its digits is 311040, while the sum is 41.

The square root of 239843345 is about 15486.8765411235. The cubic root of 239843345 is about 621.3112596755.

The spelling of 239843345 in words is "two hundred thirty-nine million, eight hundred forty-three thousand, three hundred forty-five".