422331320 has 64 divisors (see below), whose sum is σ = 979624800. Its totient is φ = 163745280.

The previous prime is 422331317. The next prime is 422331341. The reversal of 422331320 is 23133224.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 422331292 and 422331301.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 681971 + ... + 682589.

Almost surely, 2^422331320 is an apocalyptic number.

422331320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422331320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (489812400).

422331320 is an abundant number, since it is smaller than the sum of its proper divisors (557293480).

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

422331320 is a wasteful number, since it uses less digits than its factorization.

422331320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 422331320 is about 20550.7012045818. The cubic root of 422331320 is about 750.2703144136.

Adding to 422331320 its reverse (23133224), we get a palindrome (445464544).

The spelling of 422331320 in words is "four hundred twenty-two million, three hundred thirty-one thousand, three hundred twenty".