238385117 has 4 divisors (see below), whose sum is σ = 244827996. Its totient is φ = 231942240.

The previous prime is 238385089. The next prime is 238385123. The reversal of 238385117 is 711583832.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 84897796 + 153487321 = 9214^2 + 12389^2 .

It is a cyclic number.

It is not a de Polignac number, because 238385117 - 2¹⁴ = 238368733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238385137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3221384 + ... + 3221457.

It is an arithmetic number, because the mean of its divisors is an integer number (61206999).

Almost surely, 2^238385117 is an apocalyptic number.

It is an amenable number.

238385117 is a deficient number, since it is larger than the sum of its proper divisors (6442879).

238385117 is an equidigital number, since it uses as much as digits as its factorization.

238385117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6442878.

The product of its digits is 40320, while the sum is 38.

The square root of 238385117 is about 15439.7252890069. The cubic root of 238385117 is about 620.0495251802.

The spelling of 238385117 in words is "two hundred thirty-eight million, three hundred eighty-five thousand, one hundred seventeen".