26864256 has 32 divisors (see below), whose sum is σ = 71359200. Its totient is φ = 8954624.

The previous prime is 26864251. The next prime is 26864273. The reversal of 26864256 is 65246862.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (26864251) 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 3 ways as a sum of consecutive naturals, for example, 34596 + ... + 35363.

It is an arithmetic number, because the mean of its divisors is an integer number (2229975).

Almost surely, 2^26864256 is an apocalyptic number.

It is an amenable number.

26864256 is an abundant number, since it is smaller than the sum of its proper divisors (44494944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26864256 is an equidigital number, since it uses as much as digits as its factorization.

26864256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69976 (or 69964 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 26864256 is about 5183.0739913684. The cubic root of 26864256 is about 299.4963995394.

The spelling of 26864256 in words is "twenty-six million, eight hundred sixty-four thousand, two hundred fifty-six".