28202328 has 96 divisors (see below), whose sum is σ = 95247360. Its totient is φ = 7323840.

The previous prime is 28202299. The next prime is 28202329. The reversal of 28202328 is 82320282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28202329) 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 23 ways as a sum of consecutive naturals, for example, 3001 + ... + 8087.

It is an arithmetic number, because the mean of its divisors is an integer number (992160).

Almost surely, 2^28202328 is an apocalyptic number.

28202328 is a gapful number since it is divisible by the number (28) 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 28202328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47623680).

28202328 is an abundant number, since it is smaller than the sum of its proper divisors (67045032).

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

28202328 is a wasteful number, since it uses less digits than its factorization.

28202328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5117 (or 5110 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 28202328 is about 5310.5864082981. The cubic root of 28202328 is about 304.3885555595.

The spelling of 28202328 in words is "twenty-eight million, two hundred two thousand, three hundred twenty-eight".