1044396866 has 16 divisors (see below), whose sum is σ = 1586528664. Its totient is φ = 515579904.

The previous prime is 1044396841. The next prime is 1044396889. The reversal of 1044396866 is 6686934401.

It can be written as a sum of positive squares in 4 ways, for example, as 457061641 + 587335225 = 21379^2 + 24235^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1044396866.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77786 + ... + 90218.

Almost surely, 2^1044396866 is an apocalyptic number.

1044396866 is a deficient number, since it is larger than the sum of its proper divisors (542131798).

1044396866 is a wasteful number, since it uses less digits than its factorization.

1044396866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12965.

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 1044396866 is about 32317.1296064487. The cubic root of 1044396866 is about 1014.5851932457.

The spelling of 1044396866 in words is "one billion, forty-four million, three hundred ninety-six thousand, eight hundred sixty-six".