422004321 has 6 divisors (see below), whose sum is σ = 609561810. Its totient is φ = 281336208.

The previous prime is 422004301. The next prime is 422004329. The reversal of 422004321 is 123400224.

It can be written as a sum of positive squares in only one way, i.e., 421686225 + 318096 = 20535^2 + 564^2 .

It is not a de Polignac number, because 422004321 - 2¹⁵ = 421971553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 422004294 and 422004303.

It is not an unprimeable number, because it can be changed into a prime (422004329) 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 5 ways as a sum of consecutive naturals, for example, 23444676 + ... + 23444693.

It is an arithmetic number, because the mean of its divisors is an integer number (101593635).

Almost surely, 2^422004321 is an apocalyptic number.

It is an amenable number.

422004321 is a deficient number, since it is larger than the sum of its proper divisors (187557489).

422004321 is a wasteful number, since it uses less digits than its factorization.

422004321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46889375 (or 46889372 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 422004321 is about 20542.7437553994. The cubic root of 422004321 is about 750.0766268375.

Adding to 422004321 its reverse (123400224), we get a palindrome (545404545).

The spelling of 422004321 in words is "four hundred twenty-two million, four thousand, three hundred twenty-one".