28883800 has 96 divisors (see below), whose sum is σ = 77227200. Its totient is φ = 9936000.

The previous prime is 28883773. The next prime is 28883807. The reversal of 28883800 is 838882.

28883800 is a nontrivial binomial coefficient, being equal to C(7601, 2).

It is a self number, because there is not a number n which added to its sum of digits gives 28883800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28883807) 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, 41455 + ... + 42145.

It is an arithmetic number, because the mean of its divisors is an integer number (804450).

Almost surely, 2^28883800 is an apocalyptic number.

28883800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

28883800 is the 7600-th triangular number.

28883800 is the 2534-th centered nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28883800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38613600).

28883800 is an abundant number, since it is smaller than the sum of its proper divisors (48343400).

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

28883800 is a wasteful number, since it uses less digits than its factorization.

28883800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 28883800 is about 5374.3650787791. The cubic root of 28883800 is about 306.8207847474.

The spelling of 28883800 in words is "twenty-eight million, eight hundred eighty-three thousand, eight hundred".