26449249 has 4 divisors (see below), whose sum is σ = 26502336. Its totient is φ = 26396164.

The previous prime is 26449237. The next prime is 26449253. The reversal of 26449249 is 94294462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94294462 = 2 ⋅47147231.

It is a cyclic number.

It is not a de Polignac number, because 26449249 - 2¹⁹ = 25924961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26449259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25789 + ... + 26794.

It is an arithmetic number, because the mean of its divisors is an integer number (6625584).

Almost surely, 2^26449249 is an apocalyptic number.

It is an amenable number.

26449249 is a deficient number, since it is larger than the sum of its proper divisors (53087).

26449249 is an equidigital number, since it uses as much as digits as its factorization.

26449249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53086.

The product of its digits is 124416, while the sum is 40.

The square root of 26449249 is about 5142.8833352508. The cubic root of 26449249 is about 297.9461526056.

The spelling of 26449249 in words is "twenty-six million, four hundred forty-nine thousand, two hundred forty-nine".