19828128 has 24 divisors (see below), whose sum is σ = 52049088. Its totient is φ = 6609344.

The previous prime is 19828097. The next prime is 19828169. The reversal of 19828128 is 82182891.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103176 + ... + 103367.

It is an arithmetic number, because the mean of its divisors is an integer number (2168712).

Almost surely, 2^19828128 is an apocalyptic number.

It is an amenable number.

19828128 is an abundant number, since it is smaller than the sum of its proper divisors (32220960).

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

19828128 is a wasteful number, since it uses less digits than its factorization.

19828128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206556 (or 206548 counting only the distinct ones).

The product of its digits is 18432, while the sum is 39.

The square root of 19828128 is about 4452.8786195000. The cubic root of 19828128 is about 270.6619696608.

The spelling of 19828128 in words is "nineteen million, eight hundred twenty-eight thousand, one hundred twenty-eight".