26856258 has 64 divisors (see below), whose sum is σ = 63891072. Its totient is φ = 7418880.

The previous prime is 26856257. The next prime is 26856289. The reversal of 26856258 is 85265862.

It is not an unprimeable number, because it can be changed into a prime (26856257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96816 + ... + 97092.

It is an arithmetic number, because the mean of its divisors is an integer number (998298).

Almost surely, 2^26856258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26856258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31945536).

26856258 is an abundant number, since it is smaller than the sum of its proper divisors (37034814).

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

26856258 is a wasteful number, since it uses less digits than its factorization.

26856258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419.

The product of its digits is 230400, while the sum is 42.

The square root of 26856258 is about 5182.3023840760. The cubic root of 26856258 is about 299.4666746644.

The spelling of 26856258 in words is "twenty-six million, eight hundred fifty-six thousand, two hundred fifty-eight".