2044403313 has 4 divisors (see below), whose sum is σ = 2725871088. Its totient is φ = 1362935540.

The previous prime is 2044403303. The next prime is 2044403329. The reversal of 2044403313 is 3133044402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2044403313 - 2⁴ = 2044403297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2044403303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340733883 + ... + 340733888.

It is an arithmetic number, because the mean of its divisors is an integer number (681467772).

Almost surely, 2^2044403313 is an apocalyptic number.

It is an amenable number.

2044403313 is a deficient number, since it is larger than the sum of its proper divisors (681467775).

2044403313 is an equidigital number, since it uses as much as digits as its factorization.

2044403313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681467774.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 2044403313 is about 45215.0783810003. The cubic root of 2044403313 is about 1269.1769964891.

Adding to 2044403313 its reverse (3133044402), we get a palindrome (5177447715).

The spelling of 2044403313 in words is "two billion, forty-four million, four hundred three thousand, three hundred thirteen".