234840413 has 2 divisors, whose sum is σ = 234840414. Its totient is φ = 234840412.

The previous prime is 234840401. The next prime is 234840433. The reversal of 234840413 is 314048432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234763684 + 76729 = 15322^2 + 277^2 .

It is a cyclic number.

It is not a de Polignac number, because 234840413 - 2¹⁰ = 234839389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234840433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117420206 + 117420207.

It is an arithmetic number, because the mean of its divisors is an integer number (117420207).

Almost surely, 2^234840413 is an apocalyptic number.

It is an amenable number.

234840413 is a deficient number, since it is larger than the sum of its proper divisors (1).

234840413 is an equidigital number, since it uses as much as digits as its factorization.

234840413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 234840413 is about 15324.5036787493. The cubic root of 234840413 is about 616.9608579568.

Adding to 234840413 its reverse (314048432), we get a palindrome (548888845).

The spelling of 234840413 in words is "two hundred thirty-four million, eight hundred forty thousand, four hundred thirteen".