1443382489 has 2 divisors, whose sum is σ = 1443382490. Its totient is φ = 1443382488.

The previous prime is 1443382453. The next prime is 1443382517. The reversal of 1443382489 is 9842833441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1414136025 + 29246464 = 37605^2 + 5408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1443382489 is a prime.

It is not a weakly prime, because it can be changed into another prime (1443382439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721691244 + 721691245.

It is an arithmetic number, because the mean of its divisors is an integer number (721691245).

Almost surely, 2^1443382489 is an apocalyptic number.

It is an amenable number.

1443382489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1443382489 is an equidigital number, since it uses as much as digits as its factorization.

1443382489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 663552, while the sum is 46.

The square root of 1443382489 is about 37991.8739864198. The cubic root of 1443382489 is about 1130.1267221551.

The spelling of 1443382489 in words is "one billion, four hundred forty-three million, three hundred eighty-two thousand, four hundred eighty-nine".