434034409 has 2 divisors, whose sum is σ = 434034410. Its totient is φ = 434034408.

The previous prime is 434034407. The next prime is 434034427. The reversal of 434034409 is 904430434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 295736809 + 138297600 = 17197^2 + 11760^2 .

It is a cyclic number.

It is not a de Polignac number, because 434034409 - 2¹ = 434034407 is a prime.

Together with 434034407, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (434034407) 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, 217017204 + 217017205.

It is an arithmetic number, because the mean of its divisors is an integer number (217017205).

Almost surely, 2^434034409 is an apocalyptic number.

It is an amenable number.

434034409 is a deficient number, since it is larger than the sum of its proper divisors (1).

434034409 is an equidigital number, since it uses as much as digits as its factorization.

434034409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 434034409 is about 20833.4924820588. The cubic root of 434034409 is about 757.1374362408.

The spelling of 434034409 in words is "four hundred thirty-four million, thirty-four thousand, four hundred nine".