422002008 has 192 divisors, whose sum is σ = 1286928000. Its totient is φ = 127759680.

The previous prime is 422002001. The next prime is 422002019. The reversal of 422002008 is 800200224.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422002001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3943891 + ... + 3943997.

It is an arithmetic number, because the mean of its divisors is an integer number (6702750).

Almost surely, 2^422002008 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 422002008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (643464000).

422002008 is an abundant number, since it is smaller than the sum of its proper divisors (864925992).

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

422002008 is a wasteful number, since it uses less digits than its factorization.

422002008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 422002008 is about 20542.6874580713. The cubic root of 422002008 is about 750.0752564484.

The spelling of 422002008 in words is "four hundred twenty-two million, two thousand, eight".