238890975 has 24 divisors (see below), whose sum is σ = 396200832. Its totient is φ = 127010400.

The previous prime is 238890947. The next prime is 238890997. The reversal of 238890975 is 579098832.

It is not a de Polignac number, because 238890975 - 2¹³ = 238882783 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, 20014 + ... + 29636.

It is an arithmetic number, because the mean of its divisors is an integer number (16508368).

Almost surely, 2^238890975 is an apocalyptic number.

238890975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

238890975 is a deficient number, since it is larger than the sum of its proper divisors (157309857).

238890975 is a wasteful number, since it uses less digits than its factorization.

238890975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9967 (or 9962 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The square root of 238890975 is about 15456.0983110227. The cubic root of 238890975 is about 620.4878011594.

The spelling of 238890975 in words is "two hundred thirty-eight million, eight hundred ninety thousand, nine hundred seventy-five".