238493815 has 16 divisors (see below), whose sum is σ = 327539520. Its totient is φ = 163307520.

The previous prime is 238493807. The next prime is 238493861. The reversal of 238493815 is 518394832.

It is not a de Polignac number, because 238493815 - 2³ = 238493807 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22485 + ... + 31345.

It is an arithmetic number, because the mean of its divisors is an integer number (20471220).

Almost surely, 2^238493815 is an apocalyptic number.

238493815 is a deficient number, since it is larger than the sum of its proper divisors (89045705).

238493815 is an equidigital number, since it uses as much as digits as its factorization.

238493815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9642.

The product of its digits is 207360, while the sum is 43.

The square root of 238493815 is about 15443.2449634136. The cubic root of 238493815 is about 620.1437535206.

The spelling of 238493815 in words is "two hundred thirty-eight million, four hundred ninety-three thousand, eight hundred fifteen".