432471909 has 4 divisors (see below), whose sum is σ = 576629216. Its totient is φ = 288314604.

The previous prime is 432471899. The next prime is 432471911. The reversal of 432471909 is 909174234.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 432471909 - 2⁵ = 432471877 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 (432471989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72078649 + ... + 72078654.

It is an arithmetic number, because the mean of its divisors is an integer number (144157304).

Almost surely, 2^432471909 is an apocalyptic number.

It is an amenable number.

432471909 is a deficient number, since it is larger than the sum of its proper divisors (144157307).

432471909 is a wasteful number, since it uses less digits than its factorization.

432471909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144157306.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 432471909 is about 20795.9589584131. The cubic root of 432471909 is about 756.2277927682.

The spelling of 432471909 in words is "four hundred thirty-two million, four hundred seventy-one thousand, nine hundred nine".