26401256 has 16 divisors (see below), whose sum is σ = 56574240. Its totient is φ = 11314800.

The previous prime is 26401229. The next prime is 26401259. The reversal of 26401256 is 65210462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26401259) 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 3 ways as a sum of consecutive naturals, for example, 235670 + ... + 235781.

It is an arithmetic number, because the mean of its divisors is an integer number (3535890).

Almost surely, 2^26401256 is an apocalyptic number.

It is an amenable number.

26401256 is an abundant number, since it is smaller than the sum of its proper divisors (30172984).

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

26401256 is a wasteful number, since it uses less digits than its factorization.

26401256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471464 (or 471460 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 26401256 is about 5138.2152543466. The cubic root of 26401256 is about 297.7658325860.

The spelling of 26401256 in words is "twenty-six million, four hundred one thousand, two hundred fifty-six".