238668 has 12 divisors (see below), whose sum is σ = 556920. Its totient is φ = 79552.

The previous prime is 238657. The next prime is 238673. The reversal of 238668 is 866832.

238668 is nontrivially palindromic in base 11.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9933 + ... + 9956.

It is an arithmetic number, because the mean of its divisors is an integer number (46410).

2²³⁸⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

238668 is an abundant number, since it is smaller than the sum of its proper divisors (318252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238668 is a wasteful number, since it uses less digits than its factorization.

238668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19896 (or 19894 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 238668 is about 488.5365902366. The cubic root of 238668 is about 62.0294691681.

The spelling of 238668 in words is "two hundred thirty-eight thousand, six hundred sixty-eight".