26681449 has 8 divisors (see below), whose sum is σ = 29479680. Its totient is φ = 24019776.

The previous prime is 26681443. The next prime is 26681489. The reversal of 26681449 is 94418662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26681449 - 2⁷ = 26681321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26681443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33729 + ... + 34510.

It is an arithmetic number, because the mean of its divisors is an integer number (3684960).

Almost surely, 2^26681449 is an apocalyptic number.

It is an amenable number.

26681449 is a deficient number, since it is larger than the sum of its proper divisors (2798231).

26681449 is a wasteful number, since it uses less digits than its factorization.

26681449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68279.

The product of its digits is 82944, while the sum is 40.

The square root of 26681449 is about 5165.4088899138. The cubic root of 26681449 is about 298.8155109219.

The spelling of 26681449 in words is "twenty-six million, six hundred eighty-one thousand, four hundred forty-nine".