1441643837 has 2 divisors, whose sum is σ = 1441643838. Its totient is φ = 1441643836.

The previous prime is 1441643803. The next prime is 1441643897. The reversal of 1441643837 is 7383461441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1316673796 + 124970041 = 36286^2 + 11179^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1441643837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1441643794 and 1441643803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1441643897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720821918 + 720821919.

It is an arithmetic number, because the mean of its divisors is an integer number (720821919).

Almost surely, 2^1441643837 is an apocalyptic number.

It is an amenable number.

1441643837 is a deficient number, since it is larger than the sum of its proper divisors (1).

1441643837 is an equidigital number, since it uses as much as digits as its factorization.

1441643837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 41.

The square root of 1441643837 is about 37968.9851984485. The cubic root of 1441643837 is about 1129.6727684319.

The spelling of 1441643837 in words is "one billion, four hundred forty-one million, six hundred forty-three thousand, eight hundred thirty-seven".