404442422017 has 2 divisors, whose sum is σ = 404442422018. Its totient is φ = 404442422016.

The previous prime is 404442421961. The next prime is 404442422047. The reversal of 404442422017 is 710224244404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 400588992241 + 3853429776 = 632921^2 + 62076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404442422017 is a prime.

It is not a weakly prime, because it can be changed into another prime (404442422047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202221211008 + 202221211009.

It is an arithmetic number, because the mean of its divisors is an integer number (202221211009).

Almost surely, 2^404442422017 is an apocalyptic number.

It is an amenable number.

404442422017 is a deficient number, since it is larger than the sum of its proper divisors (1).

404442422017 is an equidigital number, since it uses as much as digits as its factorization.

404442422017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57344, while the sum is 34.

The spelling of 404442422017 in words is "four hundred four billion, four hundred forty-two million, four hundred twenty-two thousand, seventeen".