234000405 has 24 divisors (see below), whose sum is σ = 411162648. Its totient is φ = 123088896.

The previous prime is 234000401. The next prime is 234000419. The reversal of 234000405 is 504000432.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 48986001 + 185014404 = 6999^2 + 13602^2 .

It is not a de Polignac number, because 234000405 - 2² = 234000401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234000401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32332 + ... + 38901.

It is an arithmetic number, because the mean of its divisors is an integer number (17131777).

Almost surely, 2^234000405 is an apocalyptic number.

It is an amenable number.

234000405 is a deficient number, since it is larger than the sum of its proper divisors (177162243).

234000405 is a wasteful number, since it uses less digits than its factorization.

234000405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71317 (or 71314 counting only the distinct ones).

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

The square root of 234000405 is about 15297.0717786117. The cubic root of 234000405 is about 616.2243702886.

Adding to 234000405 its reverse (504000432), we get a palindrome (738000837).

The spelling of 234000405 in words is "two hundred thirty-four million, four hundred five", and thus it is an aban number.