26240256 has 108 divisors (see below), whose sum is σ = 86518432. Its totient is φ = 7492608.

The previous prime is 26240243. The next prime is 26240257. The reversal of 26240256 is 65204262.

26240256 = T₂₈ + T₂₉ + ... + T₅₃₉.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26240257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15315 + ... + 16941.

Almost surely, 2^26240256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26240256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43259216).

26240256 is an abundant number, since it is smaller than the sum of its proper divisors (60278176).

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

26240256 is a wasteful number, since it uses less digits than its factorization.

26240256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656 (or 1639 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 26240256 is about 5122.5243776872. The cubic root of 26240256 is about 297.1593200233.

The spelling of 26240256 in words is "twenty-six million, two hundred forty thousand, two hundred fifty-six".