404504113 has 4 divisors (see below), whose sum is σ = 435619828. Its totient is φ = 373388400.

The previous prime is 404504099. The next prime is 404504141. The reversal of 404504113 is 311405404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 265429264 + 139074849 = 16292^2 + 11793^2 .

It is a cyclic number.

It is not a de Polignac number, because 404504113 - 2⁵ = 404504081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404504143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15557838 + ... + 15557863.

It is an arithmetic number, because the mean of its divisors is an integer number (108904957).

Almost surely, 2^404504113 is an apocalyptic number.

It is an amenable number.

404504113 is a deficient number, since it is larger than the sum of its proper divisors (31115715).

404504113 is a wasteful number, since it uses less digits than its factorization.

404504113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31115714.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 404504113 is about 20112.2876123031. The cubic root of 404504113 is about 739.5615329205.

Adding to 404504113 its reverse (311405404), we get a palindrome (715909517).

The spelling of 404504113 in words is "four hundred four million, five hundred four thousand, one hundred thirteen".