238736668 has 12 divisors (see below), whose sum is σ = 417921112. Its totient is φ = 119330640.

The previous prime is 238736639. The next prime is 238736669. The reversal of 238736668 is 866637832.

238736668 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 not an unprimeable number, because it can be changed into a prime (238736669) 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, 8698 + ... + 23518.

Almost surely, 2^238736668 is an apocalyptic number.

It is an amenable number.

238736668 is a deficient number, since it is larger than the sum of its proper divisors (179184444).

238736668 is a wasteful number, since it uses less digits than its factorization.

238736668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18852 (or 18850 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 49.

The square root of 238736668 is about 15451.1057209508. The cubic root of 238736668 is about 620.3541750236.

The spelling of 238736668 in words is "two hundred thirty-eight million, seven hundred thirty-six thousand, six hundred sixty-eight".