26828556 has 24 divisors (see below), whose sum is σ = 62697264. Its totient is φ = 8928960.

The previous prime is 26828537. The next prime is 26828561. The reversal of 26828556 is 65582862.

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 7 ways as a sum of consecutive naturals, for example, 8926 + ... + 11546.

It is an arithmetic number, because the mean of its divisors is an integer number (2612386).

Almost surely, 2^26828556 is an apocalyptic number.

It is an amenable number.

26828556 is an abundant number, since it is smaller than the sum of its proper divisors (35868708).

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

26828556 is a wasteful number, since it uses less digits than its factorization.

26828556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3481 (or 3479 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

The square root of 26828556 is about 5179.6289442392. The cubic root of 26828556 is about 299.3636734717.

The spelling of 26828556 in words is "twenty-six million, eight hundred twenty-eight thousand, five hundred fifty-six".