238738 has 8 divisors (see below), whose sum is σ = 362880. Its totient is φ = 117780.

The previous prime is 238729. The next prime is 238747. The reversal of 238738 is 837832.

It is an interprime number because it is at equal distance from previous prime (238729) and next prime (238747).

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

It is a nialpdrome in base 8.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 238738.

It is an unprimeable number.

238738 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598 + ... + 913.

It is an arithmetic number, because the mean of its divisors is an integer number (45360).

2²³⁸⁷³⁸ is an apocalyptic number.

238738 is a deficient number, since it is larger than the sum of its proper divisors (124142).

238738 is a wasteful number, since it uses less digits than its factorization.

238738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592.

The product of its digits is 8064, while the sum is 31.

The square root of 238738 is about 488.6082275198. The cubic root of 238738 is about 62.0355328750.

The spelling of 238738 in words is "two hundred thirty-eight thousand, seven hundred thirty-eight".