434464409 has 2 divisors, whose sum is σ = 434464410. Its totient is φ = 434464408.

The previous prime is 434464369. The next prime is 434464421. The reversal of 434464409 is 904464434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 426216025 + 8248384 = 20645^2 + 2872^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434464409 is a prime.

It is not a weakly prime, because it can be changed into another prime (434464439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217232204 + 217232205.

It is an arithmetic number, because the mean of its divisors is an integer number (217232205).

Almost surely, 2^434464409 is an apocalyptic number.

It is an amenable number.

434464409 is a deficient number, since it is larger than the sum of its proper divisors (1).

434464409 is an equidigital number, since it uses as much as digits as its factorization.

434464409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 38.

The square root of 434464409 is about 20843.8098484898. The cubic root of 434464409 is about 757.3873869634.

The spelling of 434464409 in words is "four hundred thirty-four million, four hundred sixty-four thousand, four hundred nine".