26005812 has 48 divisors (see below), whose sum is σ = 70315392. Its totient is φ = 7326720.

The previous prime is 26005799. The next prime is 26005823. The reversal of 26005812 is 21850062.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4012 + ... + 8252.

It is an arithmetic number, because the mean of its divisors is an integer number (1464904).

Almost surely, 2^26005812 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 26005812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35157696).

26005812 is an abundant number, since it is smaller than the sum of its proper divisors (44309580).

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

26005812 is a wasteful number, since it uses less digits than its factorization.

26005812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4328 (or 4326 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 26005812 is about 5099.5893952357. The cubic root of 26005812 is about 296.2716795899.

Adding to 26005812 its reverse (21850062), we get a palindrome (47855874).

The spelling of 26005812 in words is "twenty-six million, five thousand, eight hundred twelve".