434593409 has 2 divisors, whose sum is σ = 434593410. Its totient is φ = 434593408.

The previous prime is 434593381. The next prime is 434593451. The reversal of 434593409 is 904395434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 408040000 + 26553409 = 20200^2 + 5153^2 .

It is a cyclic number.

It is not a de Polignac number, because 434593409 - 2²⁰ = 433544833 is a prime.

It is a super-2 number, since 2×434593409² = 377742862292482562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (434595409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217296704 + 217296705.

It is an arithmetic number, because the mean of its divisors is an integer number (217296705).

Almost surely, 2^434593409 is an apocalyptic number.

It is an amenable number.

434593409 is a deficient number, since it is larger than the sum of its proper divisors (1).

434593409 is an equidigital number, since it uses as much as digits as its factorization.

434593409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 41.

The square root of 434593409 is about 20846.9040627140. The cubic root of 434593409 is about 757.4623400187.

The spelling of 434593409 in words is "four hundred thirty-four million, five hundred ninety-three thousand, four hundred nine".