238966 has 24 divisors (see below), whose sum is σ = 447984. Its totient is φ = 93600.

The previous prime is 238949. The next prime is 238967. The reversal of 238966 is 669832.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238967) by changing a digit.

238966 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 (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2316 + ... + 2416.

It is an arithmetic number, because the mean of its divisors is an integer number (18666).

2²³⁸⁹⁶⁶ is an apocalyptic number.

238966 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

238966 is a deficient number, since it is larger than the sum of its proper divisors (209018).

238966 is a wasteful number, since it uses less digits than its factorization.

238966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 123 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 238966 is about 488.8414876010. The cubic root of 238966 is about 62.0552750208.

The spelling of 238966 in words is "two hundred thirty-eight thousand, nine hundred sixty-six".