238205 has 16 divisors (see below), whose sum is σ = 321408. Its totient is φ = 168000.

The previous prime is 238201. The next prime is 238207. The reversal of 238205 is 502832.

It is not a de Polignac number, because 238205 - 2² = 238201 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238201) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3320 + ... + 3390.

It is an arithmetic number, because the mean of its divisors is an integer number (20088).

2²³⁸²⁰⁵ is an apocalyptic number.

It is an amenable number.

238205 is a deficient number, since it is larger than the sum of its proper divisors (83203).

238205 is a wasteful number, since it uses less digits than its factorization.

238205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 238205 is about 488.0624959982. The cubic root of 238205 is about 61.9893321916.

It can be divided in two parts, 23 and 8205, that added together give a palindrome (8228).

The spelling of 238205 in words is "two hundred thirty-eight thousand, two hundred five".