422560 has 48 divisors (see below), whose sum is σ = 1058400. Its totient is φ = 158976.

The previous prime is 422557. The next prime is 422563. The reversal of 422560 is 65224.

It is an interprime number because it is at equal distance from previous prime (422557) and next prime (422563).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (422563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2971 + ... + 3109.

It is an arithmetic number, because the mean of its divisors is an integer number (22050).

2⁴²²⁵⁶⁰ is an apocalyptic number.

422560 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 422560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529200).

422560 is an abundant number, since it is smaller than the sum of its proper divisors (635840).

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

422560 is a wasteful number, since it uses less digits than its factorization.

422560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 422560 is about 650.0461522077. The cubic root of 422560 is about 75.0405706423.

Adding to 422560 its reverse (65224), we get a palindrome (487784).

The spelling of 422560 in words is "four hundred twenty-two thousand, five hundred sixty".