404316013 has 2 divisors, whose sum is σ = 404316014. Its totient is φ = 404316012.

The previous prime is 404315993. The next prime is 404316019. The reversal of 404316013 is 310613404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 341621289 + 62694724 = 18483^2 + 7918^2 .

It is a cyclic number.

It is not a de Polignac number, because 404316013 - 2⁹ = 404315501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404316019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202158006 + 202158007.

It is an arithmetic number, because the mean of its divisors is an integer number (202158007).

Almost surely, 2^404316013 is an apocalyptic number.

It is an amenable number.

404316013 is a deficient number, since it is larger than the sum of its proper divisors (1).

404316013 is an equidigital number, since it uses as much as digits as its factorization.

404316013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 404316013 is about 20107.6108227706. The cubic root of 404316013 is about 739.4468797041.

Adding to 404316013 its reverse (310613404), we get a palindrome (714929417).

The spelling of 404316013 in words is "four hundred four million, three hundred sixteen thousand, thirteen".