28822200 has 144 divisors (see below), whose sum is σ = 98457240. Its totient is φ = 6969600.

The previous prime is 28822163. The next prime is 28822207. The reversal of 28822200 is 222882.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28822207) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 72402 + ... + 72798.

Almost surely, 2^28822200 is an apocalyptic number.

28822200 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 28822200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49228620).

28822200 is an abundant number, since it is smaller than the sum of its proper divisors (69635040).

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

28822200 is a wasteful number, since it uses less digits than its factorization.

28822200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 28822200 is about 5368.6311104415. The cubic root of 28822200 is about 306.6025123098.

It can be divided in two parts, 28 and 822200, that added together give a palindrome (822228).

The spelling of 28822200 in words is "twenty-eight million, eight hundred twenty-two thousand, two hundred".