422427321 has 12 divisors (see below), whose sum is σ = 611350740. Its totient is φ = 281074560.

The previous prime is 422427319. The next prime is 422427329. The reversal of 422427321 is 123724224.

It can be written as a sum of positive squares in 2 ways, for example, as 187142400 + 235284921 = 13680^2 + 15339^2 .

It is not a de Polignac number, because 422427321 - 2¹ = 422427319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422427329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40356 + ... + 49733.

It is an arithmetic number, because the mean of its divisors is an integer number (50945895).

Almost surely, 2^422427321 is an apocalyptic number.

It is an amenable number.

422427321 is a deficient number, since it is larger than the sum of its proper divisors (188923419).

422427321 is a wasteful number, since it uses less digits than its factorization.

422427321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90616 (or 90613 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 422427321 is about 20553.0367829185. The cubic root of 422427321 is about 750.3271586022.

The spelling of 422427321 in words is "four hundred twenty-two million, four hundred twenty-seven thousand, three hundred twenty-one".