238866 has 16 divisors (see below), whose sum is σ = 489888. Its totient is φ = 77600.

The previous prime is 238859. The next prime is 238877. The reversal of 238866 is 668832.

238866 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 238866.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240 + ... + 731.

It is an arithmetic number, because the mean of its divisors is an integer number (30618).

2²³⁸⁸⁶⁶ is an apocalyptic number.

238866 is an abundant number, since it is smaller than the sum of its proper divisors (251022).

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

238866 is a wasteful number, since it uses less digits than its factorization.

238866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017.

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

The square root of 238866 is about 488.7391942539. The cubic root of 238866 is about 62.0466177316.

The spelling of 238866 in words is "two hundred thirty-eight thousand, eight hundred sixty-six".