26869249 has 16 divisors (see below), whose sum is σ = 31392000. Its totient is φ = 22738320.

The previous prime is 26869247. The next prime is 26869259. The reversal of 26869249 is 94296862.

It is not a de Polignac number, because 26869249 - 2¹ = 26869247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26869199 and 26869208.

It is not an unprimeable number, because it can be changed into a prime (26869247) 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 15 ways as a sum of consecutive naturals, for example, 11242 + ... + 13420.

It is an arithmetic number, because the mean of its divisors is an integer number (1962000).

Almost surely, 2^26869249 is an apocalyptic number.

It is an amenable number.

26869249 is a deficient number, since it is larger than the sum of its proper divisors (4522751).

26869249 is a wasteful number, since it uses less digits than its factorization.

26869249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268.

The product of its digits is 373248, while the sum is 46.

The square root of 26869249 is about 5183.5556329608. Note that the first 3 decimals coincide. The cubic root of 26869249 is about 299.5149532251.

It can be divided in two parts, 2686 and 9249, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 26869249 in words is "twenty-six million, eight hundred sixty-nine thousand, two hundred forty-nine".