238998975 has 24 divisors (see below), whose sum is σ = 396446352. Its totient is φ = 127046400.

The previous prime is 238998923. The next prime is 238998997. The reversal of 238998975 is 579899832.

It is not a de Polignac number, because 238998975 - 2⁸ = 238998719 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18385 + ... + 28565.

It is an arithmetic number, because the mean of its divisors is an integer number (16518598).

Almost surely, 2^238998975 is an apocalyptic number.

238998975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

238998975 is a deficient number, since it is larger than the sum of its proper divisors (157447377).

238998975 is a wasteful number, since it uses less digits than its factorization.

238998975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10507 (or 10502 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 60.

The square root of 238998975 is about 15459.5916828356. The cubic root of 238998975 is about 620.5812923241.

It can be divided in two parts, 23 and 8998975, that added together give a palindrome (8998998).

The spelling of 238998975 in words is "two hundred thirty-eight million, nine hundred ninety-eight thousand, nine hundred seventy-five".