422311340 has 96 divisors (see below), whose sum is σ = 1028462400. Its totient is φ = 144184320.

The previous prime is 422311339. The next prime is 422311343. The reversal of 422311340 is 43113224.

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

It is not an unprimeable number, because it can be changed into a prime (422311343) 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 31 ways as a sum of consecutive naturals, for example, 235166 + ... + 236954.

It is an arithmetic number, because the mean of its divisors is an integer number (10713150).

Almost surely, 2^422311340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422311340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514231200).

422311340 is an abundant number, since it is smaller than the sum of its proper divisors (606151060).

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

422311340 is a wasteful number, since it uses less digits than its factorization.

422311340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875 (or 1873 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 422311340 is about 20550.2150840326. The cubic root of 422311340 is about 750.2584827572.

Adding to 422311340 its reverse (43113224), we get a palindrome (465424564).

The spelling of 422311340 in words is "four hundred twenty-two million, three hundred eleven thousand, three hundred forty".