26080389 has 12 divisors (see below), whose sum is σ = 37836396. Its totient is φ = 17310912.

The previous prime is 26080361. The next prime is 26080409. The reversal of 26080389 is 98308062.

It can be written as a sum of positive squares in 2 ways, for example, as 2722500 + 23357889 = 1650^2 + 4833^2 .

It is not a de Polignac number, because 26080389 - 2⁸ = 26080133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26080319) 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 11 ways as a sum of consecutive naturals, for example, 4122 + ... + 8315.

It is an arithmetic number, because the mean of its divisors is an integer number (3153033).

Almost surely, 2^26080389 is an apocalyptic number.

It is an amenable number.

26080389 is a deficient number, since it is larger than the sum of its proper divisors (11756007).

26080389 is a wasteful number, since it uses less digits than its factorization.

26080389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12676 (or 12673 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 26080389 is about 5106.8962198188. The cubic root of 26080389 is about 296.5546159060.

The spelling of 26080389 in words is "twenty-six million, eighty thousand, three hundred eighty-nine".