1044444013 has 8 divisors (see below), whose sum is σ = 1071493920. Its totient is φ = 1017714480.

The previous prime is 1044443993. The next prime is 1044444067. The reversal of 1044444013 is 3104444401.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1044444013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044444083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73483 + ... + 86536.

It is an arithmetic number, because the mean of its divisors is an integer number (133936740).

Almost surely, 2^1044444013 is an apocalyptic number.

It is an amenable number.

1044444013 is a deficient number, since it is larger than the sum of its proper divisors (27049907).

1044444013 is a wasteful number, since it uses less digits than its factorization.

1044444013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160187.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1044444013 is about 32317.8590410937. The cubic root of 1044444013 is about 1014.6004600885.

Adding to 1044444013 its reverse (3104444401), we get a palindrome (4148888414).

The spelling of 1044444013 in words is "one billion, forty-four million, four hundred forty-four thousand, thirteen".