19883968 has 28 divisors (see below), whose sum is σ = 42494200. Its totient is φ = 9176832.

The previous prime is 19883953. The next prime is 19883977. The reversal of 19883968 is 86938891.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

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, 11118 + ... + 12781.

It is an arithmetic number, because the mean of its divisors is an integer number (1517650).

Almost surely, 2^19883968 is an apocalyptic number.

It is an amenable number.

19883968 is an abundant number, since it is smaller than the sum of its proper divisors (22610232).

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

19883968 is a wasteful number, since it uses less digits than its factorization.

19883968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23924 (or 23914 counting only the distinct ones).

The product of its digits is 746496, while the sum is 52.

The square root of 19883968 is about 4459.1443125335. The cubic root of 19883968 is about 270.9158110512.

The spelling of 19883968 in words is "nineteen million, eight hundred eighty-three thousand, nine hundred sixty-eight".