234343409 has 2 divisors, whose sum is σ = 234343410. Its totient is φ = 234343408.

The previous prime is 234343391. The next prime is 234343429. The reversal of 234343409 is 904343432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211062784 + 23280625 = 14528^2 + 4825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234343409 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (234343429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117171704 + 117171705.

It is an arithmetic number, because the mean of its divisors is an integer number (117171705).

Almost surely, 2^234343409 is an apocalyptic number.

It is an amenable number.

234343409 is a deficient number, since it is larger than the sum of its proper divisors (1).

234343409 is an equidigital number, since it uses as much as digits as its factorization.

234343409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 32.

The square root of 234343409 is about 15308.2790998858. The cubic root of 234343409 is about 616.5253159670.

The spelling of 234343409 in words is "two hundred thirty-four million, three hundred forty-three thousand, four hundred nine".