19882028 has 24 divisors (see below), whose sum is σ = 36523872. Its totient is φ = 9451904.

The previous prime is 19882021. The next prime is 19882033. The reversal of 19882028 is 82028891.

It is a junction number, because it is equal to n+sod(n) for n = 19881982 and 19882000.

It is not an unprimeable number, because it can be changed into a prime (19882021) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17576 + ... + 18672.

It is an arithmetic number, because the mean of its divisors is an integer number (1521828).

Almost surely, 2^19882028 is an apocalyptic number.

It is an amenable number.

19882028 is a deficient number, since it is larger than the sum of its proper divisors (16641844).

19882028 is a wasteful number, since it uses less digits than its factorization.

19882028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321 (or 1319 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 19882028 is about 4458.9267767031. The cubic root of 19882028 is about 270.9070000371.

The spelling of 19882028 in words is "nineteen million, eight hundred eighty-two thousand, twenty-eight".