234385 has 4 divisors (see below), whose sum is σ = 281268. Its totient is φ = 187504.

The previous prime is 234383. The next prime is 234431. The reversal of 234385 is 583432.

234385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 37249 + 197136 = 193^2 + 444^2 .

It is a cyclic number.

It is not a de Polignac number, because 234385 - 2¹ = 234383 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

234385 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (234383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23434 + ... + 23443.

It is an arithmetic number, because the mean of its divisors is an integer number (70317).

234385 is a Friedman number, since it can be written as 8+5^(4+3)*3+2, using all its digits and the basic arithmetic operations.

2²³⁴³⁸⁵ is an apocalyptic number.

It is an amenable number.

234385 is a deficient number, since it is larger than the sum of its proper divisors (46883).

234385 is an equidigital number, since it uses as much as digits as its factorization.

234385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46882.

The product of its digits is 2880, while the sum is 25.

The square root of 234385 is about 484.1332461214. The cubic root of 234385 is about 61.6561787212.

The spelling of 234385 in words is "two hundred thirty-four thousand, three hundred eighty-five".