238068638 has 16 divisors (see below), whose sum is σ = 361345920. Its totient is φ = 117625176.

The previous prime is 238068637. The next prime is 238068647. The reversal of 238068638 is 836860832.

238068638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238068637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126581 + ... + 128447.

It is an arithmetic number, because the mean of its divisors is an integer number (22584120).

Almost surely, 2^238068638 is an apocalyptic number.

238068638 is a deficient number, since it is larger than the sum of its proper divisors (123277282).

238068638 is a wasteful number, since it uses less digits than its factorization.

238068638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591.

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 238068638 is about 15429.4730305348. The cubic root of 238068638 is about 619.7750120178.

The spelling of 238068638 in words is "two hundred thirty-eight million, sixty-eight thousand, six hundred thirty-eight".