28502323200 has 936 divisors, whose sum is σ = 115239506640. Its totient is φ = 6900940800.

The previous prime is 28502323177. The next prime is 28502323207. The reversal of 28502323200 is 232320582.

It is a tau number, because it is divible by the number of its divisors (936).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28502323207) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 467251170 + ... + 467251230.

Almost surely, 2^28502323200 is an apocalyptic number.

28502323200 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 28502323200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57619753320).

28502323200 is an abundant number, since it is smaller than the sum of its proper divisors (86737183440).

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

28502323200 is a wasteful number, since it uses less digits than its factorization.

28502323200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 28502323200 its reverse (232320582), we get a palindrome (28734643782).

The spelling of 28502323200 in words is "twenty-eight billion, five hundred two million, three hundred twenty-three thousand, two hundred".