239438 has 8 divisors (see below), whose sum is σ = 378120. Its totient is φ = 113400.

The previous prime is 239431. The next prime is 239441. The reversal of 239438 is 834932.

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

It is a self number, because there is not a number n which added to its sum of digits gives 239438.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 239438.

It is not an unprimeable number, because it can be changed into a prime (239431) by changing a digit.

239438 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3113 + ... + 3188.

It is an arithmetic number, because the mean of its divisors is an integer number (47265).

2²³⁹⁴³⁸ is an apocalyptic number.

239438 is a deficient number, since it is larger than the sum of its proper divisors (138682).

239438 is a wasteful number, since it uses less digits than its factorization.

239438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6322.

The product of its digits is 5184, while the sum is 29.

The square root of 239438 is about 489.3240235263. The cubic root of 239438 is about 62.0961048552.

The spelling of 239438 in words is "two hundred thirty-nine thousand, four hundred thirty-eight".