4305409 has 2 divisors, whose sum is σ = 4305410. Its totient is φ = 4305408.

The previous prime is 4305401. The next prime is 4305443. The reversal of 4305409 is 9045034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3504384 + 801025 = 1872^2 + 895^2 .

It is a cyclic number.

It is not a de Polignac number, because 4305409 - 2³ = 4305401 is a prime.

4305409 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4305401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2152704 + 2152705.

It is an arithmetic number, because the mean of its divisors is an integer number (2152705).

Almost surely, 2^4305409 is an apocalyptic number.

It is an amenable number.

4305409 is a deficient number, since it is larger than the sum of its proper divisors (1).

4305409 is an equidigital number, since it uses as much as digits as its factorization.

4305409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 4305409 is about 2074.9479511544. The cubic root of 4305409 is about 162.6814887469.

The spelling of 4305409 in words is "four million, three hundred five thousand, four hundred nine".