28933300 has 72 divisors (see below), whose sum is σ = 70932960. Its totient is φ = 10147200.

The previous prime is 28933273. The next prime is 28933301. The reversal of 28933300 is 333982.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28933301) 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, 31447 + ... + 32353.

It is an arithmetic number, because the mean of its divisors is an integer number (985180).

Almost surely, 2^28933300 is an apocalyptic number.

28933300 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 28933300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35466480).

28933300 is an abundant number, since it is smaller than the sum of its proper divisors (41999660).

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

28933300 is a wasteful number, since it uses less digits than its factorization.

28933300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 28933300 is about 5378.9683025651. The cubic root of 28933300 is about 306.9959574636.

The spelling of 28933300 in words is "twenty-eight million, nine hundred thirty-three thousand, three hundred".