238812385 has 16 divisors (see below), whose sum is σ = 328896000. Its totient is φ = 163066176.

The previous prime is 238812383. The next prime is 238812397. The reversal of 238812385 is 583218832.

It is not a de Polignac number, because 238812385 - 2¹ = 238812383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238812383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5910 + ... + 22639.

It is an arithmetic number, because the mean of its divisors is an integer number (20556000).

Almost surely, 2^238812385 is an apocalyptic number.

It is an amenable number.

238812385 is a deficient number, since it is larger than the sum of its proper divisors (90083615).

238812385 is a wasteful number, since it uses less digits than its factorization.

238812385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28800.

The product of its digits is 92160, while the sum is 40.

The square root of 238812385 is about 15453.5557396995. Note that the first 3 decimals coincide. The cubic root of 238812385 is about 620.4197513098.

The spelling of 238812385 in words is "two hundred thirty-eight million, eight hundred twelve thousand, three hundred eighty-five".