432220109 has 2 divisors, whose sum is σ = 432220110. Its totient is φ = 432220108.

The previous prime is 432220049. The next prime is 432220111. The reversal of 432220109 is 901022234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251317609 + 180902500 = 15853^2 + 13450^2 .

It is a cyclic number.

It is not a de Polignac number, because 432220109 - 2¹² = 432216013 is a prime.

It is a Sophie Germain prime.

Together with 432220111, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (432220169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216110054 + 216110055.

It is an arithmetic number, because the mean of its divisors is an integer number (216110055).

Almost surely, 2^432220109 is an apocalyptic number.

It is an amenable number.

432220109 is a deficient number, since it is larger than the sum of its proper divisors (1).

432220109 is an equidigital number, since it uses as much as digits as its factorization.

432220109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 432220109 is about 20789.9040161324. The cubic root of 432220109 is about 756.0809970094.

The spelling of 432220109 in words is "four hundred thirty-two million, two hundred twenty thousand, one hundred nine".