239842 has 4 divisors (see below), whose sum is σ = 359766. Its totient is φ = 119920.

The previous prime is 239831. The next prime is 239843. The reversal of 239842 is 248932.

239842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 219961 + 19881 = 469^2 + 141^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 239842.

It is not an unprimeable number, because it can be changed into a prime (239843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59959 + ... + 59962.

2²³⁹⁸⁴² is an apocalyptic number.

239842 is a deficient number, since it is larger than the sum of its proper divisors (119924).

239842 is a wasteful number, since it uses less digits than its factorization.

239842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119923.

The product of its digits is 3456, while the sum is 28.

The square root of 239842 is about 489.7366639328. The cubic root of 239842 is about 62.1310098271.

It can be divided in two parts, 239 and 842, that added together give a triangular number (1081 = T₄₆).

The spelling of 239842 in words is "two hundred thirty-nine thousand, eight hundred forty-two".