422065680 has 80 divisors (see below), whose sum is σ = 1316552640. Its totient is φ = 111849984.

The previous prime is 422065669. The next prime is 422065751. The reversal of 422065680 is 86560224.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33726 + ... + 44514.

It is an arithmetic number, because the mean of its divisors is an integer number (16456908).

Almost surely, 2^422065680 is an apocalyptic number.

422065680 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 422065680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658276320).

422065680 is an abundant number, since it is smaller than the sum of its proper divisors (894486960).

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

422065680 is a wasteful number, since it uses less digits than its factorization.

422065680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10968 (or 10962 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 422065680 is about 20544.2371481640. The cubic root of 422065680 is about 750.1129785358.

The spelling of 422065680 in words is "four hundred twenty-two million, sixty-five thousand, six hundred eighty".