5440335209 has 2 divisors, whose sum is σ = 5440335210. Its totient is φ = 5440335208.

The previous prime is 5440335191. The next prime is 5440335239. The reversal of 5440335209 is 9025330445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5101959184 + 338376025 = 71428^2 + 18395^2 .

It is a cyclic number.

It is not a de Polignac number, because 5440335209 - 2³² = 1145367913 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5440335239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2720167604 + 2720167605.

It is an arithmetic number, because the mean of its divisors is an integer number (2720167605).

Almost surely, 2^5440335209 is an apocalyptic number.

It is an amenable number.

5440335209 is a deficient number, since it is larger than the sum of its proper divisors (1).

5440335209 is an equidigital number, since it uses as much as digits as its factorization.

5440335209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 5440335209 is about 73758.6280308955. The cubic root of 5440335209 is about 1758.7679920644.

The spelling of 5440335209 in words is "five billion, four hundred forty million, three hundred thirty-five thousand, two hundred nine".