19976028 has 24 divisors (see below), whose sum is σ = 48115200. Its totient is φ = 6443760.

The previous prime is 19975999. The next prime is 19976053. The reversal of 19976028 is 82067991.

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 7 ways as a sum of consecutive naturals, for example, 26478 + ... + 27221.

It is an arithmetic number, because the mean of its divisors is an integer number (2004800).

Almost surely, 2^19976028 is an apocalyptic number.

It is an amenable number.

19976028 is an abundant number, since it is smaller than the sum of its proper divisors (28139172).

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

19976028 is a wasteful number, since it uses less digits than its factorization.

19976028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53737 (or 53735 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 19976028 is about 4469.4550003328. The cubic root of 19976028 is about 271.3332682694. Note that the first 3 decimals are identical.

The spelling of 19976028 in words is "nineteen million, nine hundred seventy-six thousand, twenty-eight".