1313044404 has 24 divisors (see below), whose sum is σ = 3501451968. Its totient is φ = 375155520.

The previous prime is 1313044399. The next prime is 1313044429. The reversal of 1313044404 is 4044403131.

It is a congruent number.

It is an unprimeable number.

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, 7815657 + ... + 7815824.

It is an arithmetic number, because the mean of its divisors is an integer number (145893832).

Almost surely, 2^1313044404 is an apocalyptic number.

1313044404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1313044404 is an abundant number, since it is smaller than the sum of its proper divisors (2188407564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313044404 is a wasteful number, since it uses less digits than its factorization.

1313044404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15631495 (or 15631493 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1313044404 is about 36235.9545755317. The cubic root of 1313044404 is about 1095.0311435858.

Adding to 1313044404 its reverse (4044403131), we get a palindrome (5357447535).

The spelling of 1313044404 in words is "one billion, three hundred thirteen million, forty-four thousand, four hundred four".