28350300 has 144 divisors (see below), whose sum is σ = 91494144. Its totient is φ = 6776000.

The previous prime is 28350277. The next prime is 28350307. The reversal of 28350300 is 305382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28350307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 399265 + ... + 399335.

It is an arithmetic number, because the mean of its divisors is an integer number (635376).

Almost surely, 2^28350300 is an apocalyptic number.

28350300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is a pronic number, being equal to 5324×5325.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28350300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45747072).

28350300 is an abundant number, since it is smaller than the sum of its proper divisors (63143844).

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

28350300 is a wasteful number, since it uses less digits than its factorization.

28350300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 28350300 is about 5324.4999765236. The cubic root of 28350300 is about 304.9199825924.

Adding to 28350300 its reverse (305382), we get a palindrome (28655682).

The spelling of 28350300 in words is "twenty-eight million, three hundred fifty thousand, three hundred".