238275407 has 4 divisors (see below), whose sum is σ = 238897920. Its totient is φ = 237652896.

The previous prime is 238275391. The next prime is 238275413. The reversal of 238275407 is 704572832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 238275407 - 2⁴ = 238275391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238275437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310682 + ... + 311447.

It is an arithmetic number, because the mean of its divisors is an integer number (59724480).

Almost surely, 2^238275407 is an apocalyptic number.

238275407 is a deficient number, since it is larger than the sum of its proper divisors (622513).

238275407 is an equidigital number, since it uses as much as digits as its factorization.

238275407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622512.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 238275407 is about 15436.1720319514. The cubic root of 238275407 is about 619.9543905054.

The spelling of 238275407 in words is "two hundred thirty-eight million, two hundred seventy-five thousand, four hundred seven".