26826660 has 192 divisors, whose sum is σ = 98058240. Its totient is φ = 5961600.

The previous prime is 26826649. The next prime is 26826661. The reversal of 26826660 is 6662862.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (26826661) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 177585 + ... + 177735.

It is an arithmetic number, because the mean of its divisors is an integer number (510720).

Almost surely, 2^26826660 is an apocalyptic number.

26826660 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 26826660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49029120).

26826660 is an abundant number, since it is smaller than the sum of its proper divisors (71231580).

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

26826660 is a wasteful number, since it uses less digits than its factorization.

26826660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 215 counting only the distinct ones).

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

The square root of 26826660 is about 5179.4459163119. The cubic root of 26826660 is about 299.3566211988.

The spelling of 26826660 in words is "twenty-six million, eight hundred twenty-six thousand, six hundred sixty".