28526816 has 48 divisors (see below), whose sum is σ = 60963840. Its totient is φ = 13086720.

The previous prime is 28526783. The next prime is 28526843. The reversal of 28526816 is 61862582.

It is a self number, because there is not a number n which added to its sum of digits gives 28526816.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21665 + ... + 22943.

It is an arithmetic number, because the mean of its divisors is an integer number (1270080).

Almost surely, 2^28526816 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 28526816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30481920).

28526816 is an abundant number, since it is smaller than the sum of its proper divisors (32437024).

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

28526816 is a wasteful number, since it uses less digits than its factorization.

28526816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347 (or 1339 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 28526816 is about 5341.0500840191. The cubic root of 28526816 is about 305.5515095344.

The spelling of 28526816 in words is "twenty-eight million, five hundred twenty-six thousand, eight hundred sixteen".