1044405313 has 16 divisors (see below), whose sum is σ = 1214991360. Its totient is φ = 879245136.

The previous prime is 1044405311. The next prime is 1044405337. The reversal of 1044405313 is 3135044401.

It is not a de Polignac number, because 1044405313 - 2¹ = 1044405311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1044405311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165270 + ... + 171472.

It is an arithmetic number, because the mean of its divisors is an integer number (75936960).

Almost surely, 2^1044405313 is an apocalyptic number.

It is an amenable number.

1044405313 is a deficient number, since it is larger than the sum of its proper divisors (170586047).

1044405313 is an equidigital number, since it uses as much as digits as its factorization.

1044405313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6636.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1044405313 is about 32317.2602953901. The cubic root of 1044405313 is about 1014.5879285335.

Adding to 1044405313 its reverse (3135044401), we get a palindrome (4179449714).

The spelling of 1044405313 in words is "one billion, forty-four million, four hundred five thousand, three hundred thirteen".