234405 has 12 divisors (see below), whose sum is σ = 406380. Its totient is φ = 124992.

The previous prime is 234383. The next prime is 234431. The reversal of 234405 is 504432.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 173889 + 60516 = 417^2 + 246^2 .

It is not a de Polignac number, because 234405 - 2⁶ = 234341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2560 + ... + 2649.

It is an arithmetic number, because the mean of its divisors is an integer number (33865).

2²³⁴⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

234405 is a deficient number, since it is larger than the sum of its proper divisors (171975).

234405 is a wasteful number, since it uses less digits than its factorization.

234405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5220 (or 5217 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 234405 is about 484.1539011513. The cubic root of 234405 is about 61.6579323722.

Adding to 234405 its reverse (504432), we get a palindrome (738837).

The spelling of 234405 in words is "two hundred thirty-four thousand, four hundred five".