1044396889 has 2 divisors, whose sum is σ = 1044396890. Its totient is φ = 1044396888.

The previous prime is 1044396841. The next prime is 1044396901. The reversal of 1044396889 is 9886934401.

It is a happy number.

1044396889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 787756489 + 256640400 = 28067^2 + 16020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1044396889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1044396289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522198444 + 522198445.

It is an arithmetic number, because the mean of its divisors is an integer number (522198445).

Almost surely, 2^1044396889 is an apocalyptic number.

It is an amenable number.

1044396889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1044396889 is an equidigital number, since it uses as much as digits as its factorization.

1044396889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 1044396889 is about 32317.1299622971. The cubic root of 1044396889 is about 1014.5852006935.

The spelling of 1044396889 in words is "one billion, forty-four million, three hundred ninety-six thousand, eight hundred eighty-nine".