26316636 has 12 divisors (see below), whose sum is σ = 61405512. Its totient is φ = 8772208.

The previous prime is 26316617. The next prime is 26316637. The reversal of 26316636 is 63661362.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 26316597 and 26316606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26316637) 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 3 ways as a sum of consecutive naturals, for example, 1096515 + ... + 1096538.

It is an arithmetic number, because the mean of its divisors is an integer number (5117126).

Almost surely, 2^26316636 is an apocalyptic number.

It is an amenable number.

26316636 is an abundant number, since it is smaller than the sum of its proper divisors (35088876).

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

26316636 is a wasteful number, since it uses less digits than its factorization.

26316636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193060 (or 2193058 counting only the distinct ones).

The product of its digits is 23328, while the sum is 33.

The square root of 26316636 is about 5129.9742689413. The cubic root of 26316636 is about 297.4473639900.

Adding to 26316636 its reverse (63661362), we get a palindrome (89977998).

The spelling of 26316636 in words is "twenty-six million, three hundred sixteen thousand, six hundred thirty-six".