238742 has 8 divisors (see below), whose sum is σ = 409296. Its totient is φ = 102312.

The previous prime is 238729. The next prime is 238747. The reversal of 238742 is 247832.

238742 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (238747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8513 + ... + 8540.

It is an arithmetic number, because the mean of its divisors is an integer number (51162).

2²³⁸⁷⁴² is an apocalyptic number.

238742 is a deficient number, since it is larger than the sum of its proper divisors (170554).

238742 is a wasteful number, since it uses less digits than its factorization.

238742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17062.

The product of its digits is 2688, while the sum is 26.

The square root of 238742 is about 488.6123207616. The cubic root of 238742 is about 62.0358793367.

The spelling of 238742 in words is "two hundred thirty-eight thousand, seven hundred forty-two".