2644320241 has 2 divisors, whose sum is σ = 2644320242. Its totient is φ = 2644320240.

The previous prime is 2644320221. The next prime is 2644320257. The reversal of 2644320241 is 1420234462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1910127025 + 734193216 = 43705^2 + 27096^2 .

It is a cyclic number.

It is not a de Polignac number, because 2644320241 - 2⁵ = 2644320209 is a prime.

It is not a weakly prime, because it can be changed into another prime (2644320221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322160120 + 1322160121.

It is an arithmetic number, because the mean of its divisors is an integer number (1322160121).

Almost surely, 2^2644320241 is an apocalyptic number.

It is an amenable number.

2644320241 is a deficient number, since it is larger than the sum of its proper divisors (1).

2644320241 is an equidigital number, since it uses as much as digits as its factorization.

2644320241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 2644320241 is about 51422.9544172639. The cubic root of 2644320241 is about 1382.8381415393.

The spelling of 2644320241 in words is "two billion, six hundred forty-four million, three hundred twenty thousand, two hundred forty-one".