1044403113 has 64 divisors (see below), whose sum is σ = 1641185280. Its totient is φ = 586555200.

The previous prime is 1044403081. The next prime is 1044403207. The reversal of 1044403113 is 3113044401.

It is not a de Polignac number, because 1044403113 - 2⁵ = 1044403081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1044403113.

It is not an unprimeable number, because it can be changed into a prime (1044403513) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14709868 + ... + 14709938.

It is an arithmetic number, because the mean of its divisors is an integer number (25643520).

Almost surely, 2^1044403113 is an apocalyptic number.

1044403113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1044403113 is a deficient number, since it is larger than the sum of its proper divisors (596782167).

1044403113 is an equidigital number, since it uses as much as digits as its factorization.

1044403113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1044403113 is about 32317.2262578335. The cubic root of 1044403113 is about 1014.5872161360.

Adding to 1044403113 its reverse (3113044401), we get a palindrome (4157447514).

The spelling of 1044403113 in words is "one billion, forty-four million, four hundred three thousand, one hundred thirteen".