224432209 has 2 divisors, whose sum is σ = 224432210. Its totient is φ = 224432208.

The previous prime is 224432203. The next prime is 224432297. The reversal of 224432209 is 902234422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205291584 + 19140625 = 14328^2 + 4375^2 .

It is a cyclic number.

It is not a de Polignac number, because 224432209 - 2⁵ = 224432177 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (224432203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112216104 + 112216105.

It is an arithmetic number, because the mean of its divisors is an integer number (112216105).

Almost surely, 2^224432209 is an apocalyptic number.

It is an amenable number.

224432209 is a deficient number, since it is larger than the sum of its proper divisors (1).

224432209 is an equidigital number, since it uses as much as digits as its factorization.

224432209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 224432209 is about 14981.0616779987. The cubic root of 224432209 is about 607.7081508830.

It can be divided in two parts, 2244 and 32209, that added together give a triangular number (34453 = T₂₆₂).

The spelling of 224432209 in words is "two hundred twenty-four million, four hundred thirty-two thousand, two hundred nine".