4223405209 has 2 divisors, whose sum is σ = 4223405210. Its totient is φ = 4223405208.

The previous prime is 4223405189. The next prime is 4223405243. The reversal of 4223405209 is 9025043224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3720390025 + 503015184 = 60995^2 + 22428^2 .

It is a cyclic number.

It is not a de Polignac number, because 4223405209 - 2¹⁷ = 4223274137 is a prime.

It is not a weakly prime, because it can be changed into another prime (4223405279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111702604 + 2111702605.

It is an arithmetic number, because the mean of its divisors is an integer number (2111702605).

Almost surely, 2^4223405209 is an apocalyptic number.

It is an amenable number.

4223405209 is a deficient number, since it is larger than the sum of its proper divisors (1).

4223405209 is an equidigital number, since it uses as much as digits as its factorization.

4223405209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 4223405209 is about 64987.7312190540. The cubic root of 4223405209 is about 1616.4201305334.

The spelling of 4223405209 in words is "four billion, two hundred twenty-three million, four hundred five thousand, two hundred nine".