163420208 has 20 divisors (see below), whose sum is σ = 361859280. Its totient is φ = 70037184.

The previous prime is 163420207. The next prime is 163420223. The reversal of 163420208 is 802024361.

It is not an unprimeable number, because it can be changed into a prime (163420207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729443 + ... + 729666.

It is an arithmetic number, because the mean of its divisors is an integer number (18092964).

Almost surely, 2^163420208 is an apocalyptic number.

It is an amenable number.

163420208 is an abundant number, since it is smaller than the sum of its proper divisors (198439072).

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

163420208 is a wasteful number, since it uses less digits than its factorization.

163420208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459124 (or 1459118 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 163420208 is about 12783.5913576741. The cubic root of 163420208 is about 546.7245632381.

Adding to 163420208 its reverse (802024361), we get a palindrome (965444569).

The spelling of 163420208 in words is "one hundred sixty-three million, four hundred twenty thousand, two hundred eight".