432009 has 12 divisors (see below), whose sum is σ = 651456. Its totient is φ = 275352.

The previous prime is 432007. The next prime is 432023. The reversal of 432009 is 900234.

It is not a de Polignac number, because 432009 - 2¹ = 432007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 431982 and 432000.

It is not an unprimeable number, because it can be changed into a prime (432001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 837 + ... + 1250.

It is an arithmetic number, because the mean of its divisors is an integer number (54288).

2⁴³²⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

432009 is a deficient number, since it is larger than the sum of its proper divisors (219447).

432009 is a wasteful number, since it uses less digits than its factorization.

432009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116 (or 2113 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 432009 is about 657.2739155025. The cubic root of 432009 is about 75.5957879572.

The spelling of 432009 in words is "four hundred thirty-two thousand, nine".