19968208 has 20 divisors (see below), whose sum is σ = 41664868. Its totient is φ = 9216000.

The previous prime is 19968203. The next prime is 19968229. The reversal of 19968208 is 80286991.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2729104 + 17239104 = 1652^2 + 4152^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19968203) 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, 47793 + ... + 48208.

Almost surely, 2^19968208 is an apocalyptic number.

It is an amenable number.

19968208 is an abundant number, since it is smaller than the sum of its proper divisors (21696660).

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

19968208 is a wasteful number, since it uses less digits than its factorization.

19968208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96022 (or 96016 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 19968208 is about 4468.5800876789. The cubic root of 19968208 is about 271.2978574410.

The spelling of 19968208 in words is "nineteen million, nine hundred sixty-eight thousand, two hundred eight".