4420641409 has 2 divisors, whose sum is σ = 4420641410. Its totient is φ = 4420641408.

The previous prime is 4420641389. The next prime is 4420641451. The reversal of 4420641409 is 9041460244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2665450384 + 1755191025 = 51628^2 + 41895^2 .

It is a cyclic number.

It is not a de Polignac number, because 4420641409 - 2¹⁷ = 4420510337 is a prime.

It is not a weakly prime, because it can be changed into another prime (4420641109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2210320704 + 2210320705.

It is an arithmetic number, because the mean of its divisors is an integer number (2210320705).

Almost surely, 2^4420641409 is an apocalyptic number.

It is an amenable number.

4420641409 is a deficient number, since it is larger than the sum of its proper divisors (1).

4420641409 is an equidigital number, since it uses as much as digits as its factorization.

4420641409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 4420641409 is about 66487.9042307697. The cubic root of 4420641409 is about 1641.2009606286.

The spelling of 4420641409 in words is "four billion, four hundred twenty million, six hundred forty-one thousand, four hundred nine".