238793815 has 16 divisors (see below), whose sum is σ = 326749248. Its totient is φ = 165966336.

The previous prime is 238793813. The next prime is 238793839. The reversal of 238793815 is 518397832.

It is a cyclic number.

It is not a de Polignac number, because 238793815 - 2¹ = 238793813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238793813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106947 + ... + 109156.

It is an arithmetic number, because the mean of its divisors is an integer number (20421828).

Almost surely, 2^238793815 is an apocalyptic number.

238793815 is a deficient number, since it is larger than the sum of its proper divisors (87955433).

238793815 is a wasteful number, since it uses less digits than its factorization.

238793815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216138.

The product of its digits is 362880, while the sum is 46.

The square root of 238793815 is about 15452.9548954237. The cubic root of 238793815 is about 620.4036696572.

The spelling of 238793815 in words is "two hundred thirty-eight million, seven hundred ninety-three thousand, eight hundred fifteen".