404113313 has 4 divisors (see below), whose sum is σ = 404979120. Its totient is φ = 403247508.

The previous prime is 404113309. The next prime is 404113351. The reversal of 404113313 is 313311404.

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 404113313 - 2² = 404113309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404113373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432203 + ... + 433136.

It is an arithmetic number, because the mean of its divisors is an integer number (101244780).

Almost surely, 2^404113313 is an apocalyptic number.

It is an amenable number.

404113313 is a deficient number, since it is larger than the sum of its proper divisors (865807).

404113313 is an equidigital number, since it uses as much as digits as its factorization.

404113313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865806.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 404113313 is about 20102.5698108476. The cubic root of 404113313 is about 739.3232874869.

Adding to 404113313 its reverse (313311404), we get a palindrome (717424717).

The spelling of 404113313 in words is "four hundred four million, one hundred thirteen thousand, three hundred thirteen".