26085860 has 36 divisors (see below), whose sum is σ = 57831228. Its totient is φ = 9882432.

The previous prime is 26085859. The next prime is 26085869. The reversal of 26085860 is 6858062.

It can be written as a sum of positive squares in 2 ways, for example, as 2795584 + 23290276 = 1672^2 + 4826^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26085860.

It is not an unprimeable number, because it can be changed into a prime (26085869) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5414 + ... + 9026.

It is an arithmetic number, because the mean of its divisors is an integer number (1606423).

Almost surely, 2^26085860 is an apocalyptic number.

26085860 is a gapful number since it is divisible by the number (20) 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 26085860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28915614).

26085860 is an abundant number, since it is smaller than the sum of its proper divisors (31745368).

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

26085860 is a wasteful number, since it uses less digits than its factorization.

26085860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3660 (or 3639 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 26085860 is about 5107.4318399759. The cubic root of 26085860 is about 296.5753509861.

The spelling of 26085860 in words is "twenty-six million, eighty-five thousand, eight hundred sixty".