432385909 has 8 divisors (see below), whose sum is σ = 434143512. Its totient is φ = 430632960.

The previous prime is 432385867. The next prime is 432385937. The reversal of 432385909 is 909583234.

It can be written as a sum of positive squares in 4 ways, for example, as 216001809 + 216384100 = 14697^2 + 14710^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-432385909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432385999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418057 + ... + 419089.

It is an arithmetic number, because the mean of its divisors is an integer number (54267939).

Almost surely, 2^432385909 is an apocalyptic number.

It is an amenable number.

432385909 is a deficient number, since it is larger than the sum of its proper divisors (1757603).

432385909 is a wasteful number, since it uses less digits than its factorization.

432385909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 432385909 is about 20793.8911461996. The cubic root of 432385909 is about 756.1776624204.

The spelling of 432385909 in words is "four hundred thirty-two million, three hundred eighty-five thousand, nine hundred nine".