28003336800 has 288 divisors, whose sum is σ = 92777311872. Its totient is φ = 7335444480.

The previous prime is 28003336741. The next prime is 28003336859. The reversal of 28003336800 is 863330082.

It is an interprime number because it is at equal distance from previous prime (28003336741) and next prime (28003336859).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51194127 + ... + 51194673.

It is an arithmetic number, because the mean of its divisors is an integer number (322143444).

Almost surely, 2^28003336800 is an apocalyptic number.

28003336800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28003336800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46388655936).

28003336800 is an abundant number, since it is smaller than the sum of its proper divisors (64773975072).

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

28003336800 is a wasteful number, since it uses less digits than its factorization.

28003336800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 28003336800 its reverse (863330082), we get a palindrome (28866666882).

The spelling of 28003336800 in words is "twenty-eight billion, three million, three hundred thirty-six thousand, eight hundred".