26870256 has 240 divisors, whose sum is σ = 95946240. Its totient is φ = 6842880.

The previous prime is 26870243. The next prime is 26870267. The reversal of 26870256 is 65207862.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 26870256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 440466 + ... + 440526.

It is an arithmetic number, because the mean of its divisors is an integer number (399776).

Almost surely, 2^26870256 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 26870256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47973120).

26870256 is an abundant number, since it is smaller than the sum of its proper divisors (69075984).

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

26870256 is a wasteful number, since it uses less digits than its factorization.

26870256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 26870256 is about 5183.6527661486. The cubic root of 26870256 is about 299.5186948976.

The spelling of 26870256 in words is "twenty-six million, eight hundred seventy thousand, two hundred fifty-six".