422252321 has 4 divisors (see below), whose sum is σ = 429409200. Its totient is φ = 415095444.

The previous prime is 422252297. The next prime is 422252351. The reversal of 422252321 is 123252224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 422252321 - 2²⁶ = 355143457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (422252351) 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, 3578351 + ... + 3578468.

It is an arithmetic number, because the mean of its divisors is an integer number (107352300).

Almost surely, 2^422252321 is an apocalyptic number.

It is an amenable number.

422252321 is a deficient number, since it is larger than the sum of its proper divisors (7156879).

422252321 is an equidigital number, since it uses as much as digits as its factorization.

422252321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7156878.

The product of its digits is 1920, while the sum is 23.

The square root of 422252321 is about 20548.7790634870. The cubic root of 422252321 is about 750.2235310015.

The spelling of 422252321 in words is "four hundred twenty-two million, two hundred fifty-two thousand, three hundred twenty-one".