1441989361 has 2 divisors, whose sum is σ = 1441989362. Its totient is φ = 1441989360.

The previous prime is 1441989349. The next prime is 1441989377. The reversal of 1441989361 is 1639891441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1304654400 + 137334961 = 36120^2 + 11719^2 .

It is an emirp because it is prime and its reverse (1639891441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1441989361 - 2¹⁹ = 1441465073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1441989961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720994680 + 720994681.

It is an arithmetic number, because the mean of its divisors is an integer number (720994681).

Almost surely, 2^1441989361 is an apocalyptic number.

It is an amenable number.

1441989361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1441989361 is an equidigital number, since it uses as much as digits as its factorization.

1441989361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 46.

The square root of 1441989361 is about 37973.5350079499. The cubic root of 1441989361 is about 1129.7630121440.

The spelling of 1441989361 in words is "one billion, four hundred forty-one million, nine hundred eighty-nine thousand, three hundred sixty-one".