432345509 has 2 divisors, whose sum is σ = 432345510. Its totient is φ = 432345508.

The previous prime is 432345449. The next prime is 432345593. The reversal of 432345509 is 905543234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 412293025 + 20052484 = 20305^2 + 4478^2 .

It is a cyclic number.

It is not a de Polignac number, because 432345509 - 2²⁸ = 163910053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (432345409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216172754 + 216172755.

It is an arithmetic number, because the mean of its divisors is an integer number (216172755).

Almost surely, 2^432345509 is an apocalyptic number.

It is an amenable number.

432345509 is a deficient number, since it is larger than the sum of its proper divisors (1).

432345509 is an equidigital number, since it uses as much as digits as its factorization.

432345509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 432345509 is about 20792.9196843541. The cubic root of 432345509 is about 756.1541105204.

The spelling of 432345509 in words is "four hundred thirty-two million, three hundred forty-five thousand, five hundred nine".