1444743841 has 2 divisors, whose sum is σ = 1444743842. Its totient is φ = 1444743840.

The previous prime is 1444743823. The next prime is 1444743851. The reversal of 1444743841 is 1483474441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1384137616 + 60606225 = 37204^2 + 7785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1444743841 is a prime.

It is a super-2 number, since 2×1444743841² = 4174569532214866562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1444743794 and 1444743803.

It is not a weakly prime, because it can be changed into another prime (1444743821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722371920 + 722371921.

It is an arithmetic number, because the mean of its divisors is an integer number (722371921).

Almost surely, 2^1444743841 is an apocalyptic number.

It is an amenable number.

1444743841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444743841 is an equidigital number, since it uses as much as digits as its factorization.

1444743841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172032, while the sum is 40.

The square root of 1444743841 is about 38009.7861214714. The cubic root of 1444743841 is about 1130.4819102522.

The spelling of 1444743841 in words is "one billion, four hundred forty-four million, seven hundred forty-three thousand, eight hundred forty-one".