26281836 has 108 divisors (see below), whose sum is σ = 79174368. Its totient is φ = 7326144.

The previous prime is 26281823. The next prime is 26281837. The reversal of 26281836 is 63818262.

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

It is a self number, because there is not a number n which added to its sum of digits gives 26281836.

It is not an unprimeable number, because it can be changed into a prime (26281837) 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 35 ways as a sum of consecutive naturals, for example, 82750 + ... + 83066.

It is an arithmetic number, because the mean of its divisors is an integer number (733096).

Almost surely, 2^26281836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26281836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39587184).

26281836 is an abundant number, since it is smaller than the sum of its proper divisors (52892532).

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

26281836 is a wasteful number, since it uses less digits than its factorization.

26281836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 376 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 26281836 is about 5126.5813170182. The cubic root of 26281836 is about 297.3161955754.

The spelling of 26281836 in words is "twenty-six million, two hundred eighty-one thousand, eight hundred thirty-six".