26448669 has 18 divisors (see below), whose sum is σ = 41370810. Its totient is φ = 16275168.

The previous prime is 26448659. The next prime is 26448671. The reversal of 26448669 is 96684462.

It can be written as a sum of positive squares in 3 ways, for example, as 131769 + 26316900 = 363^2 + 5130^2 .

It is not a de Polignac number, because 26448669 - 2¹⁵ = 26415901 is a prime.

It is a super-2 number, since 2×26448669² = 1399064183743122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26448659) 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 17 ways as a sum of consecutive naturals, for example, 7174 + ... + 10215.

Almost surely, 2^26448669 is an apocalyptic number.

It is an amenable number.

26448669 is a deficient number, since it is larger than the sum of its proper divisors (14922141).

26448669 is a wasteful number, since it uses less digits than its factorization.

26448669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17421 (or 17405 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 26448669 is about 5142.8269463399. The cubic root of 26448669 is about 297.9439747236.

The spelling of 26448669 in words is "twenty-six million, four hundred forty-eight thousand, six hundred sixty-nine".