422884660 has 96 divisors (see below), whose sum is σ = 1001839104. Its totient is φ = 148608000.

The previous prime is 422884643. The next prime is 422884669. The reversal of 422884660 is 66488224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422884669) 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, 1560325 + ... + 1560595.

It is an arithmetic number, because the mean of its divisors is an integer number (10435824).

Almost surely, 2^422884660 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 422884660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500919552).

422884660 is an abundant number, since it is smaller than the sum of its proper divisors (578954444).

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

422884660 is a wasteful number, since it uses less digits than its factorization.

422884660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The square root of 422884660 is about 20564.1595986804. The cubic root of 422884660 is about 750.5978403596.

It can be divided in two parts, 4228 and 84660, that added together give a palindrome (88888).

The spelling of 422884660 in words is "four hundred twenty-two million, eight hundred eighty-four thousand, six hundred sixty".