422438017 has 4 divisors (see below), whose sum is σ = 422889796. Its totient is φ = 421986240.

The previous prime is 422437999. The next prime is 422438057. The reversal of 422438017 is 710834224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55294096 + 367143921 = 7436^2 + 19161^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422438017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422438017.

It is not an unprimeable number, because it can be changed into a prime (422438057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224484 + ... + 226357.

It is an arithmetic number, because the mean of its divisors is an integer number (105722449).

Almost surely, 2^422438017 is an apocalyptic number.

It is an amenable number.

422438017 is a deficient number, since it is larger than the sum of its proper divisors (451779).

422438017 is an equidigital number, since it uses as much as digits as its factorization.

422438017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451778.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 422438017 is about 20553.2969861285. The cubic root of 422438017 is about 750.3334913930. Note that the first 3 decimals are identical.

The spelling of 422438017 in words is "four hundred twenty-two million, four hundred thirty-eight thousand, seventeen".