26320881 has 8 divisors (see below), whose sum is σ = 35148064. Its totient is φ = 17520480.

The previous prime is 26320867. The next prime is 26320919. The reversal of 26320881 is 18802362.

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

It is not a de Polignac number, because 26320881 - 2¹⁵ = 26288113 is a prime.

It is a super-2 number, since 2×26320881² = 1385577553232322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26320841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4276 + ... + 8421.

It is an arithmetic number, because the mean of its divisors is an integer number (4393508).

Almost surely, 2^26320881 is an apocalyptic number.

It is an amenable number.

26320881 is a deficient number, since it is larger than the sum of its proper divisors (8827183).

26320881 is a wasteful number, since it uses less digits than its factorization.

26320881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13391.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 26320881 is about 5130.3879970232. The cubic root of 26320881 is about 297.4633563605.

The spelling of 26320881 in words is "twenty-six million, three hundred twenty thousand, eight hundred eighty-one".