404246313 has 12 divisors (see below), whose sum is σ = 589080180. Its totient is φ = 267111936.

The previous prime is 404246303. The next prime is 404246369. The reversal of 404246313 is 313642404.

404246313 is a `hidden beast` number, since 4 + 0 + 4 + 24 + 631 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 80138304 + 324108009 = 8952^2 + 18003^2 .

It is not a de Polignac number, because 404246313 - 2¹⁴ = 404229929 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (404246303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197728 + ... + 199761.

It is an arithmetic number, because the mean of its divisors is an integer number (49090015).

Almost surely, 2^404246313 is an apocalyptic number.

It is an amenable number.

404246313 is a deficient number, since it is larger than the sum of its proper divisors (184833867).

404246313 is a wasteful number, since it uses less digits than its factorization.

404246313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397608 (or 397605 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 404246313 is about 20105.8775734858. The cubic root of 404246313 is about 739.4043862025.

Adding to 404246313 its reverse (313642404), we get a palindrome (717888717).

The spelling of 404246313 in words is "four hundred four million, two hundred forty-six thousand, three hundred thirteen".