238381287 has 8 divisors (see below), whose sum is σ = 318385536. Its totient is φ = 158648952.

The previous prime is 238381271. The next prime is 238381303. The reversal of 238381287 is 782183832.

It is an interprime number because it is at equal distance from previous prime (238381271) and next prime (238381303).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 238381287 - 2⁴ = 238381271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238381237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65923 + ... + 69444.

It is an arithmetic number, because the mean of its divisors is an integer number (39798192).

Almost surely, 2^238381287 is an apocalyptic number.

238381287 is a deficient number, since it is larger than the sum of its proper divisors (80004249).

238381287 is a wasteful number, since it uses less digits than its factorization.

238381287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135957.

The product of its digits is 129024, while the sum is 42.

The square root of 238381287 is about 15439.6012578046. The cubic root of 238381287 is about 620.0462044997.

The spelling of 238381287 in words is "two hundred thirty-eight million, three hundred eighty-one thousand, two hundred eighty-seven".