422280 has 128 divisors (see below), whose sum is σ = 1555200. Its totient is φ = 101376.

The previous prime is 422267. The next prime is 422287. The reversal of 422280 is 82224.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (422287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18349 + ... + 18371.

It is an arithmetic number, because the mean of its divisors is an integer number (12150).

2⁴²²²⁸⁰ is an apocalyptic number.

422280 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 422280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (777600).

422280 is an abundant number, since it is smaller than the sum of its proper divisors (1132920).

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

422280 is a wasteful number, since it uses less digits than its factorization.

422280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 422280 is about 649.8307471950. The cubic root of 422280 is about 75.0239923241.

The spelling of 422280 in words is "four hundred twenty-two thousand, two hundred eighty".