28323300 has 72 divisors (see below), whose sum is σ = 86279200. Its totient is φ = 7153920.

The previous prime is 28323299. The next prime is 28323301. The reversal of 28323300 is 332382.

It is an interprime number because it is at equal distance from previous prime (28323299) and next prime (28323301).

It is not an unprimeable number, because it can be changed into a prime (28323301) 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, 3216 + ... + 8184.

Almost surely, 2^28323300 is an apocalyptic number.

28323300 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 28323300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43139600).

28323300 is an abundant number, since it is smaller than the sum of its proper divisors (57955900).

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

28323300 is a wasteful number, since it uses less digits than its factorization.

28323300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005 (or 4998 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 28323300 is about 5321.9639232148. The cubic root of 28323300 is about 304.8231528764.

Adding to 28323300 its reverse (332382), we get a palindrome (28655682).

The spelling of 28323300 in words is "twenty-eight million, three hundred twenty-three thousand, three hundred".