404660313 has 8 divisors (see below), whose sum is σ = 599496800. Its totient is φ = 269773524.

The previous prime is 404660293. The next prime is 404660351. The reversal of 404660313 is 313066404.

404660313 is a `hidden beast` number, since 4 + 0 + 46 + 603 + 13 = 666.

It is not a de Polignac number, because 404660313 - 2⁵ = 404660281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 14987419 = 404660313 / (4 + 0 + 4 + 6 + 6 + 0 + 3 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404660363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7493683 + ... + 7493736.

It is an arithmetic number, because the mean of its divisors is an integer number (74937100).

Almost surely, 2^404660313 is an apocalyptic number.

It is an amenable number.

404660313 is a deficient number, since it is larger than the sum of its proper divisors (194836487).

404660313 is a wasteful number, since it uses less digits than its factorization.

404660313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14987428 (or 14987422 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 404660313 is about 20116.1704357465. The cubic root of 404660313 is about 739.6567150143.

The spelling of 404660313 in words is "four hundred four million, six hundred sixty thousand, three hundred thirteen".