2444241581 has 2 divisors, whose sum is σ = 2444241582. Its totient is φ = 2444241580.

The previous prime is 2444241551. The next prime is 2444241587. The reversal of 2444241581 is 1851424442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2217468100 + 226773481 = 47090^2 + 15059^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2444241581 is a prime.

It is a super-2 number, since 2×2444241581² = 11948633812578759122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2444241587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1222120790 + 1222120791.

It is an arithmetic number, because the mean of its divisors is an integer number (1222120791).

Almost surely, 2^2444241581 is an apocalyptic number.

It is an amenable number.

2444241581 is a deficient number, since it is larger than the sum of its proper divisors (1).

2444241581 is an equidigital number, since it uses as much as digits as its factorization.

2444241581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40960, while the sum is 35.

The square root of 2444241581 is about 49439.2716471430. The cubic root of 2444241581 is about 1347.0427413036.

The spelling of 2444241581 in words is "two billion, four hundred forty-four million, two hundred forty-one thousand, five hundred eighty-one".