238045 has 4 divisors (see below), whose sum is σ = 285660. Its totient is φ = 190432.

The previous prime is 238039. The next prime is 238079. The reversal of 238045 is 540832.

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 106276 + 131769 = 326^2 + 363^2 .

It is a cyclic number.

It is not a de Polignac number, because 238045 - 2³ = 238037 is a prime.

238045 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23800 + ... + 23809.

It is an arithmetic number, because the mean of its divisors is an integer number (71415).

2²³⁸⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

238045 is a deficient number, since it is larger than the sum of its proper divisors (47615).

238045 is an equidigital number, since it uses as much as digits as its factorization.

238045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47614.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 238045 is about 487.8985550296. The cubic root of 238045 is about 61.9754498709.

Adding to 238045 its reverse (540832), we get a palindrome (778877).

The spelling of 238045 in words is "two hundred thirty-eight thousand, forty-five".