432403409 has 2 divisors, whose sum is σ = 432403410. Its totient is φ = 432403408.

The previous prime is 432403403. The next prime is 432403421. The reversal of 432403409 is 904304234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 301369600 + 131033809 = 17360^2 + 11447^2 .

It is a cyclic number.

It is not a de Polignac number, because 432403409 - 2²⁸ = 163967953 is a prime.

It is a super-2 number, since 2×432403409² = 373945416229642562, which contains 22 as substring.

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 (432403403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216201704 + 216201705.

It is an arithmetic number, because the mean of its divisors is an integer number (216201705).

Almost surely, 2^432403409 is an apocalyptic number.

It is an amenable number.

432403409 is a deficient number, since it is larger than the sum of its proper divisors (1).

432403409 is an equidigital number, since it uses as much as digits as its factorization.

432403409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 432403409 is about 20794.3119386047. The cubic root of 432403409 is about 756.1878639020.

The spelling of 432403409 in words is "four hundred thirty-two million, four hundred three thousand, four hundred nine".