26809212 has 24 divisors (see below), whose sum is σ = 62805456. Its totient is φ = 8900608.

The previous prime is 26809199. The next prime is 26809219. The reversal of 26809212 is 21290862.

It is a self number, because there is not a number n which added to its sum of digits gives 26809212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26809219) 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 7 ways as a sum of consecutive naturals, for example, 1263 + ... + 7430.

It is an arithmetic number, because the mean of its divisors is an integer number (2616894).

Almost surely, 2^26809212 is an apocalyptic number.

It is an amenable number.

26809212 is an abundant number, since it is smaller than the sum of its proper divisors (35996244).

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

26809212 is a wasteful number, since it uses less digits than its factorization.

26809212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8957 (or 8955 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 26809212 is about 5177.7612922961. The cubic root of 26809212 is about 299.2917068298.

The spelling of 26809212 in words is "twenty-six million, eight hundred nine thousand, two hundred twelve".