1442868589 has 2 divisors, whose sum is σ = 1442868590. Its totient is φ = 1442868588.

The previous prime is 1442868587. The next prime is 1442868611. The reversal of 1442868589 is 9858682441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 766348489 + 676520100 = 27683^2 + 26010^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442868589 - 2¹ = 1442868587 is a prime.

Together with 1442868587, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442868587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721434294 + 721434295.

It is an arithmetic number, because the mean of its divisors is an integer number (721434295).

Almost surely, 2^1442868589 is an apocalyptic number.

It is an amenable number.

1442868589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442868589 is an equidigital number, since it uses as much as digits as its factorization.

1442868589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4423680, while the sum is 55.

The square root of 1442868589 is about 37985.1100959310. The cubic root of 1442868589 is about 1129.9925832912.

The spelling of 1442868589 in words is "one billion, four hundred forty-two million, eight hundred sixty-eight thousand, five hundred eighty-nine".