28753800 has 96 divisors (see below), whose sum is σ = 94413600. Its totient is φ = 7214080.

The previous prime is 28753759. The next prime is 28753849. The reversal of 28753800 is 835782.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8791 + ... + 11609.

It is an arithmetic number, because the mean of its divisors is an integer number (983475).

Almost surely, 2^28753800 is an apocalyptic number.

28753800 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 28753800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47206800).

28753800 is an abundant number, since it is smaller than the sum of its proper divisors (65659800).

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

28753800 is a wasteful number, since it uses less digits than its factorization.

28753800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855 (or 2846 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 28753800 is about 5362.2569875007. The cubic root of 28753800 is about 306.3597801625.

The spelling of 28753800 in words is "twenty-eight million, seven hundred fifty-three thousand, eight hundred".