422868648 has 16 divisors (see below), whose sum is σ = 1057171680. Its totient is φ = 140956208.

The previous prime is 422868643. The next prime is 422868673. The reversal of 422868648 is 846868224.

It is a super-2 number, since 2×422868648² = 357635786922695808, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 422868597 and 422868606.

It is not an unprimeable number, because it can be changed into a prime (422868643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8809740 + ... + 8809787.

It is an arithmetic number, because the mean of its divisors is an integer number (66073230).

Almost surely, 2^422868648 is an apocalyptic number.

It is an amenable number.

422868648 is an abundant number, since it is smaller than the sum of its proper divisors (634303032).

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

422868648 is a wasteful number, since it uses less digits than its factorization.

422868648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17619536 (or 17619532 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 48.

The square root of 422868648 is about 20563.7702768729. The cubic root of 422868648 is about 750.5883667565.

The spelling of 422868648 in words is "four hundred twenty-two million, eight hundred sixty-eight thousand, six hundred forty-eight".