238638875 has 8 divisors (see below), whose sum is σ = 297821472. Its totient is φ = 190911000.

The previous prime is 238638817. The next prime is 238638889. The reversal of 238638875 is 578836832.

It is not a de Polignac number, because 238638875 - 2⁶ = 238638811 is a prime.

It is a super-2 number, since 2×238638875² = 113897025322531250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 954431 + ... + 954680.

It is an arithmetic number, because the mean of its divisors is an integer number (37227684).

Almost surely, 2^238638875 is an apocalyptic number.

238638875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

238638875 is a deficient number, since it is larger than the sum of its proper divisors (59182597).

238638875 is an equidigital number, since it uses as much as digits as its factorization.

238638875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909126 (or 1909116 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

The square root of 238638875 is about 15447.9408012848. The cubic root of 238638875 is about 620.2694588358.

The spelling of 238638875 in words is "two hundred thirty-eight million, six hundred thirty-eight thousand, eight hundred seventy-five".