422427660 has 72 divisors (see below), whose sum is σ = 1236552240. Its totient is φ = 107741568.

The previous prime is 422427619. The next prime is 422427667. The reversal of 422427660 is 66724224.

It is not an unprimeable number, because it can be changed into a prime (422427667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25086 + ... + 38394.

Almost surely, 2^422427660 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 422427660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (618276120).

422427660 is an abundant number, since it is smaller than the sum of its proper divisors (814124580).

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

422427660 is a wasteful number, since it uses less digits than its factorization.

422427660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13367 (or 13342 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 422427660 is about 20553.0450298733. The cubic root of 422427660 is about 750.3273593159.

The spelling of 422427660 in words is "four hundred twenty-two million, four hundred twenty-seven thousand, six hundred sixty".