432020209 has 2 divisors, whose sum is σ = 432020210. Its totient is φ = 432020208.

The previous prime is 432020203. The next prime is 432020219. The reversal of 432020209 is 902020234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 382007025 + 50013184 = 19545^2 + 7072^2 .

It is a cyclic number.

It is not a de Polignac number, because 432020209 - 2⁹ = 432019697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 432020209.

It is not a weakly prime, because it can be changed into another prime (432020203) 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, 216010104 + 216010105.

It is an arithmetic number, because the mean of its divisors is an integer number (216010105).

Almost surely, 2^432020209 is an apocalyptic number.

It is an amenable number.

432020209 is a deficient number, since it is larger than the sum of its proper divisors (1).

432020209 is an equidigital number, since it uses as much as digits as its factorization.

432020209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 432020209 is about 20785.0958381240. The cubic root of 432020209 is about 755.9644175978.

The spelling of 432020209 in words is "four hundred thirty-two million, twenty thousand, two hundred nine".