234423 has 18 divisors (see below), whose sum is σ = 393432. Its totient is φ = 131760.

The previous prime is 234383. The next prime is 234431. The reversal of 234423 is 324432.

It is not a de Polignac number, because 234423 - 2⁸ = 234167 is a prime.

234423 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 234396 and 234405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234463) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3813 + ... + 3873.

2²³⁴⁴²³ is an apocalyptic number.

234423 is a deficient number, since it is larger than the sum of its proper divisors (159009).

234423 is an equidigital number, since it uses as much as digits as its factorization.

234423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 71 counting only the distinct ones).

The product of its digits is 576, while the sum is 18.

The square root of 234423 is about 484.1724899248. The cubic root of 234423 is about 61.6595105729.

Adding to 234423 its reverse (324432), we get a palindrome (558855).

Subtracting 234423 from its reverse (324432), we obtain a palindrome (90009).

The spelling of 234423 in words is "two hundred thirty-four thousand, four hundred twenty-three".