26128849 has 8 divisors (see below), whose sum is σ = 26883360. Its totient is φ = 25380000.

The previous prime is 26128831. The next prime is 26128859. The reversal of 26128849 is 94882162.

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

It is a cyclic number.

It is not a de Polignac number, because 26128849 - 2⁷ = 26128721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26128829) 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 7 ways as a sum of consecutive naturals, for example, 9022 + ... + 11560.

It is an arithmetic number, because the mean of its divisors is an integer number (3360420).

Almost surely, 2^26128849 is an apocalyptic number.

It is an amenable number.

26128849 is a deficient number, since it is larger than the sum of its proper divisors (754511).

26128849 is a wasteful number, since it uses less digits than its factorization.

26128849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2831.

The product of its digits is 55296, while the sum is 40.

The square root of 26128849 is about 5111.6385826856. The cubic root of 26128849 is about 296.7381784150.

The spelling of 26128849 in words is "twenty-six million, one hundred twenty-eight thousand, eight hundred forty-nine".