42339 has 8 divisors (see below), whose sum is σ = 61632. Its totient is φ = 25640.

The previous prime is 42337. The next prime is 42349. The reversal of 42339 is 93324.

42339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42339 - 2¹ = 42337 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (42331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 609 + ... + 674.

It is an arithmetic number, because the mean of its divisors is an integer number (7704).

2⁴²³³⁹ is an apocalyptic number.

42339 is a deficient number, since it is larger than the sum of its proper divisors (19293).

42339 is a wasteful number, since it uses less digits than its factorization.

42339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297.

The product of its digits is 648, while the sum is 21.

The square root of 42339 is about 205.7644284127. The cubic root of 42339 is about 34.8535376225.

The spelling of 42339 in words is "forty-two thousand, three hundred thirty-nine".