422484660 has 192 divisors, whose sum is σ = 1434908160. Its totient is φ = 103856256.

The previous prime is 422484659. The next prime is 422484701. The reversal of 422484660 is 66484224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 568249 + ... + 568991.

It is an arithmetic number, because the mean of its divisors is an integer number (7473480).

Almost surely, 2^422484660 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 422484660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (717454080).

422484660 is an abundant number, since it is smaller than the sum of its proper divisors (1012423500).

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

422484660 is a wasteful number, since it uses less digits than its factorization.

422484660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The square root of 422484660 is about 20554.4316389435. The cubic root of 422484660 is about 750.3611061086.

The spelling of 422484660 in words is "four hundred twenty-two million, four hundred eighty-four thousand, six hundred sixty".