238285 has 4 divisors (see below), whose sum is σ = 285948. Its totient is φ = 190624.

The previous prime is 238267. The next prime is 238291. The reversal of 238285 is 582832.

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

It can be written as a sum of positive squares in 2 ways, for example, as 133956 + 104329 = 366^2 + 323^2 .

It is a cyclic number.

It is not a de Polignac number, because 238285 - 2⁷ = 238157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23824 + ... + 23833.

It is an arithmetic number, because the mean of its divisors is an integer number (71487).

2²³⁸²⁸⁵ is an apocalyptic number.

It is an amenable number.

238285 is a deficient number, since it is larger than the sum of its proper divisors (47663).

238285 is an equidigital number, since it uses as much as digits as its factorization.

238285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47662.

The product of its digits is 3840, while the sum is 28.

The square root of 238285 is about 488.1444458355. The cubic root of 238285 is about 61.9962710210.

The spelling of 238285 in words is "two hundred thirty-eight thousand, two hundred eighty-five".