238623915 has 16 divisors (see below), whose sum is σ = 392118048. Its totient is φ = 123826176.

The previous prime is 238623893. The next prime is 238623953. The reversal of 238623915 is 519326832.

It is not a de Polignac number, because 238623915 - 2⁶ = 238623851 is a prime.

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, 214422 + ... + 215531.

It is an arithmetic number, because the mean of its divisors is an integer number (24507378).

Almost surely, 2^238623915 is an apocalyptic number.

238623915 is a deficient number, since it is larger than the sum of its proper divisors (153494133).

238623915 is a wasteful number, since it uses less digits than its factorization.

238623915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429998.

The product of its digits is 77760, while the sum is 39.

The square root of 238623915 is about 15447.4565867653. The cubic root of 238623915 is about 620.2564972357.

The spelling of 238623915 in words is "two hundred thirty-eight million, six hundred twenty-three thousand, nine hundred fifteen".