28522208 has 96 divisors (see below), whose sum is σ = 69092352. Its totient is φ = 11404800.

The previous prime is 28522199. The next prime is 28522259. The reversal of 28522208 is 80222582.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 105113 + ... + 105383.

It is an arithmetic number, because the mean of its divisors is an integer number (719712).

Almost surely, 2^28522208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28522208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34546176).

28522208 is an abundant number, since it is smaller than the sum of its proper divisors (40570144).

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

28522208 is a wasteful number, since it uses less digits than its factorization.

28522208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 28522208 is about 5340.6186907511. The cubic root of 28522208 is about 305.5350565103.

The spelling of 28522208 in words is "twenty-eight million, five hundred twenty-two thousand, two hundred eight".