26341809 has 24 divisors (see below), whose sum is σ = 39940992. Its totient is φ = 15348960.

The previous prime is 26341807. The next prime is 26341837. The reversal of 26341809 is 90814362.

It is not a de Polignac number, because 26341809 - 2¹ = 26341807 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26341809.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26341801) 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 23 ways as a sum of consecutive naturals, for example, 13144 + ... + 15014.

It is an arithmetic number, because the mean of its divisors is an integer number (1664208).

Almost surely, 2^26341809 is an apocalyptic number.

It is an amenable number.

26341809 is a deficient number, since it is larger than the sum of its proper divisors (13599183).

26341809 is a wasteful number, since it uses less digits than its factorization.

26341809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925 (or 1906 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 26341809 is about 5132.4272035753. The cubic root of 26341809 is about 297.5421741872.

The spelling of 26341809 in words is "twenty-six million, three hundred forty-one thousand, eight hundred nine".