26206866 has 72 divisors (see below), whose sum is σ = 67685904. Its totient is φ = 7302960.

The previous prime is 26206837. The next prime is 26206879. The reversal of 26206866 is 66860262.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26206866.

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 35 ways as a sum of consecutive naturals, for example, 37581 + ... + 38271.

It is an arithmetic number, because the mean of its divisors is an integer number (940082).

Almost surely, 2^26206866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26206866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33842952).

26206866 is an abundant number, since it is smaller than the sum of its proper divisors (41479038).

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

26206866 is a wasteful number, since it uses less digits than its factorization.

26206866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 26206866 is about 5119.2642049420. The cubic root of 26206866 is about 297.0332241851.

It can be divided in two parts, 26206 and 866, that added together give a palindrome (27072).

The spelling of 26206866 in words is "twenty-six million, two hundred six thousand, eight hundred sixty-six".