404050013 has 2 divisors, whose sum is σ = 404050014. Its totient is φ = 404050012.

The previous prime is 404049979. The next prime is 404050051. The reversal of 404050013 is 310050404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 403929604 + 120409 = 20098^2 + 347^2 .

It is a cyclic number.

It is not a de Polignac number, because 404050013 - 2⁶ = 404049949 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 404049973 and 404050000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404050093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202025006 + 202025007.

It is an arithmetic number, because the mean of its divisors is an integer number (202025007).

Almost surely, 2^404050013 is an apocalyptic number.

It is an amenable number.

404050013 is a deficient number, since it is larger than the sum of its proper divisors (1).

404050013 is an equidigital number, since it uses as much as digits as its factorization.

404050013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 404050013 is about 20100.9953236152. The cubic root of 404050013 is about 739.2846831266.

The spelling of 404050013 in words is "four hundred four million, fifty thousand, thirteen".