422021312 has 28 divisors (see below), whose sum is σ = 881527320. Its totient is φ = 199904256.

The previous prime is 422021309. The next prime is 422021339. The reversal of 422021312 is 213120224.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172313 + ... + 174744.

Almost surely, 2^422021312 is an apocalyptic number.

It is an amenable number.

422021312 is an abundant number, since it is smaller than the sum of its proper divisors (459506008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422021312 is a wasteful number, since it uses less digits than its factorization.

422021312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347088 (or 347078 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 422021312 is about 20543.1573035889. The cubic root of 422021312 is about 750.0866933860.

Adding to 422021312 its reverse (213120224), we get a palindrome (635141536).

The spelling of 422021312 in words is "four hundred twenty-two million, twenty-one thousand, three hundred twelve".