422320 has 20 divisors (see below), whose sum is σ = 982080. Its totient is φ = 168896.

The previous prime is 422311. The next prime is 422321. The reversal of 422320 is 23224.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 422320.

It is not an unprimeable number, because it can be changed into a prime (422321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2560 + ... + 2719.

It is an arithmetic number, because the mean of its divisors is an integer number (49104).

2⁴²²³²⁰ is an apocalyptic number.

422320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422320 is an abundant number, since it is smaller than the sum of its proper divisors (559760).

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

422320 is a wasteful number, since it uses less digits than its factorization.

422320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5292 (or 5286 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 422320 is about 649.8615237110. The cubic root of 422320 is about 75.0263611038.

Subtracting from 422320 its product of nonzero digits (96), we obtain a palindrome (422224).

Adding to 422320 its reverse (23224), we get a palindrome (445544).

The spelling of 422320 in words is "four hundred twenty-two thousand, three hundred twenty", and thus it is an iban number.