234905 has 8 divisors (see below), whose sum is σ = 307584. Its totient is φ = 170800.

The previous prime is 234893. The next prime is 234907. The reversal of 234905 is 509432.

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

It is not a de Polignac number, because 234905 - 2¹⁰ = 233881 is a prime.

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

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (234907) 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, 2081 + ... + 2190.

It is an arithmetic number, because the mean of its divisors is an integer number (38448).

2²³⁴⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

234905 is a deficient number, since it is larger than the sum of its proper divisors (72679).

234905 is a wasteful number, since it uses less digits than its factorization.

234905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 234905 is about 484.6699908185. The cubic root of 234905 is about 61.7017412673.

The spelling of 234905 in words is "two hundred thirty-four thousand, nine hundred five".