238138067 has 4 divisors (see below), whose sum is σ = 248491920. Its totient is φ = 227784216.

The previous prime is 238138051. The next prime is 238138093. The reversal of 238138067 is 760831832.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 238138067 - 2⁴ = 238138051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 238138067.

It is not an unprimeable number, because it can be changed into a prime (238138027) 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, 5176892 + ... + 5176937.

It is an arithmetic number, because the mean of its divisors is an integer number (62122980).

Almost surely, 2^238138067 is an apocalyptic number.

238138067 is a deficient number, since it is larger than the sum of its proper divisors (10353853).

238138067 is a wasteful number, since it uses less digits than its factorization.

238138067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10353852.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 238138067 is about 15431.7227489351. The cubic root of 238138067 is about 619.8352553960.

Adding to 238138067 its reverse (760831832), we get a palindrome (998969899).

The spelling of 238138067 in words is "two hundred thirty-eight million, one hundred thirty-eight thousand, sixty-seven".