28300680 has 96 divisors (see below), whose sum is σ = 92851200. Its totient is φ = 7475328.

The previous prime is 28300669. The next prime is 28300681. The reversal of 28300680 is 8600382.

It is not an unprimeable number, because it can be changed into a prime (28300681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45411 + ... + 46029.

It is an arithmetic number, because the mean of its divisors is an integer number (967200).

Almost surely, 2^28300680 is an apocalyptic number.

28300680 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 28300680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46425600).

28300680 is an abundant number, since it is smaller than the sum of its proper divisors (64550520).

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

28300680 is a wasteful number, since it uses less digits than its factorization.

28300680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763 (or 756 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 28300680 is about 5319.8383434086. The cubic root of 28300680 is about 304.7419837084.

The spelling of 28300680 in words is "twenty-eight million, three hundred thousand, six hundred eighty".