1044048989 has 2 divisors, whose sum is σ = 1044048990. Its totient is φ = 1044048988.

The previous prime is 1044048953. The next prime is 1044048991. The reversal of 1044048989 is 9898404401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 735765625 + 308283364 = 27125^2 + 17558^2 .

It is an emirp because it is prime and its reverse (9898404401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1044048989 - 2²⁸ = 775613533 is a prime.

Together with 1044048991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1044048389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522024494 + 522024495.

It is an arithmetic number, because the mean of its divisors is an integer number (522024495).

Almost surely, 2^1044048989 is an apocalyptic number.

It is an amenable number.

1044048989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1044048989 is an equidigital number, since it uses as much as digits as its factorization.

1044048989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 1044048989 is about 32311.7469196576. The cubic root of 1044048989 is about 1014.4725317150.

The spelling of 1044048989 in words is "one billion, forty-four million, forty-eight thousand, nine hundred eighty-nine".