404022342817 has 2 divisors, whose sum is σ = 404022342818. Its totient is φ = 404022342816.

The previous prime is 404022342797. The next prime is 404022342847. The reversal of 404022342817 is 718243220404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 402874556176 + 1147786641 = 634724^2 + 33879^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404022342817 is a prime.

It is not a weakly prime, because it can be changed into another prime (404022342847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202011171408 + 202011171409.

It is an arithmetic number, because the mean of its divisors is an integer number (202011171409).

Almost surely, 2^404022342817 is an apocalyptic number.

It is an amenable number.

404022342817 is a deficient number, since it is larger than the sum of its proper divisors (1).

404022342817 is an equidigital number, since it uses as much as digits as its factorization.

404022342817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 37.

The spelling of 404022342817 in words is "four hundred four billion, twenty-two million, three hundred forty-two thousand, eight hundred seventeen".