26828320 has 24 divisors (see below), whose sum is σ = 63382284. Its totient is φ = 10731264.

The previous prime is 26828297. The next prime is 26828359. The reversal of 26828320 is 2382862.

It can be written as a sum of positive squares in 2 ways, for example, as 25280784 + 1547536 = 5028^2 + 1244^2 .

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 3 ways as a sum of consecutive naturals, for example, 83679 + ... + 83998.

Almost surely, 2^26828320 is an apocalyptic number.

26828320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26828320 is an abundant number, since it is smaller than the sum of its proper divisors (36553964).

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

26828320 is a wasteful number, since it uses less digits than its factorization.

26828320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167692 (or 167684 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 26828320 is about 5179.6061626344. The cubic root of 26828320 is about 299.3627956752.

The spelling of 26828320 in words is "twenty-six million, eight hundred twenty-eight thousand, three hundred twenty".