28102300 has 18 divisors (see below), whose sum is σ = 60982208. Its totient is φ = 11240880.

The previous prime is 28102289. The next prime is 28102303. The reversal of 28102300 is 320182.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28102303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140412 + ... + 140611.

Almost surely, 2^28102300 is an apocalyptic number.

28102300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28102300 is an abundant number, since it is smaller than the sum of its proper divisors (32879908).

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

28102300 is a wasteful number, since it uses less digits than its factorization.

28102300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281037 (or 281030 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 28102300 is about 5301.1602503603. The cubic root of 28102300 is about 304.0282608768.

Adding to 28102300 its reverse (320182), we get a palindrome (28422482).

The spelling of 28102300 in words is "twenty-eight million, one hundred two thousand, three hundred".