1044404013 has 8 divisors (see below), whose sum is σ = 1393917408. Its totient is φ = 695579984.

The previous prime is 1044404003. The next prime is 1044404041. The reversal of 1044404013 is 3104044401.

1044404013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1044404013 - 2⁹ = 1044403501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044404003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168795 + ... + 174872.

It is an arithmetic number, because the mean of its divisors is an integer number (174239676).

Almost surely, 2^1044404013 is an apocalyptic number.

It is an amenable number.

1044404013 is a deficient number, since it is larger than the sum of its proper divisors (349513395).

1044404013 is a wasteful number, since it uses less digits than its factorization.

1044404013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344683.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1044404013 is about 32317.2401822928. The cubic root of 1044404013 is about 1014.5875075715.

Adding to 1044404013 its reverse (3104044401), we get a palindrome (4148448414).

The spelling of 1044404013 in words is "one billion, forty-four million, four hundred four thousand, thirteen".