1928916684 has 36 divisors (see below), whose sum is σ = 4877208336. Its totient is φ = 642796128.

The previous prime is 1928916673. The next prime is 1928916721. The reversal of 1928916684 is 4866198291.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1928916684.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241702 + ... + 249554.

Almost surely, 2^1928916684 is an apocalyptic number.

It is an amenable number.

1928916684 is an abundant number, since it is smaller than the sum of its proper divisors (2948291652).

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

1928916684 is a wasteful number, since it uses less digits than its factorization.

1928916684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14686 (or 14681 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 1928916684 is about 43919.4340127466. The cubic root of 1928916684 is about 1244.8140739436.

The spelling of 1928916684 in words is "one billion, nine hundred twenty-eight million, nine hundred sixteen thousand, six hundred eighty-four".