238864 has 10 divisors (see below), whose sum is σ = 462830. Its totient is φ = 119424.

The previous prime is 238859. The next prime is 238877. The reversal of 238864 is 468832.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 230400 + 8464 = 480^2 + 92^2 .

It is a congruent number.

It is an unprimeable number.

238864 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 (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7449 + ... + 7480.

It is an arithmetic number, because the mean of its divisors is an integer number (46283).

2²³⁸⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

238864 is a deficient number, since it is larger than the sum of its proper divisors (223966).

238864 is a wasteful number, since it uses less digits than its factorization.

238864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14937 (or 14931 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 238864 is about 488.7371481686. The cubic root of 238864 is about 62.0464445612.

The spelling of 238864 in words is "two hundred thirty-eight thousand, eight hundred sixty-four".