1044396872 has 8 divisors (see below), whose sum is σ = 1958244150. Its totient is φ = 522198432.

The previous prime is 1044396841. The next prime is 1044396889. The reversal of 1044396872 is 2786934401.

It can be written as a sum of positive squares in only one way, i.e., 736253956 + 308142916 = 27134^2 + 17554^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 65274797 + ... + 65274812.

Almost surely, 2^1044396872 is an apocalyptic number.

It is an amenable number.

1044396872 is a deficient number, since it is larger than the sum of its proper divisors (913847278).

1044396872 is a wasteful number, since it uses less digits than its factorization.

1044396872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130549615 (or 130549611 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 1044396872 is about 32317.1296992787. The cubic root of 1044396872 is about 1014.5851951886.

The spelling of 1044396872 in words is "one billion, forty-four million, three hundred ninety-six thousand, eight hundred seventy-two".