115240866 has 64 divisors (see below), whose sum is σ = 258883968. Its totient is φ = 33965568.

The previous prime is 115240859. The next prime is 115240883. The reversal of 115240866 is 668042511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210405 + ... + 210951.

It is an arithmetic number, because the mean of its divisors is an integer number (4045062).

Almost surely, 2^115240866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115240866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129441984).

115240866 is an abundant number, since it is smaller than the sum of its proper divisors (143643102).

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

115240866 is a wasteful number, since it uses less digits than its factorization.

115240866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 115240866 is about 10735.0298555710. The cubic root of 115240866 is about 486.6336887852.

The spelling of 115240866 in words is "one hundred fifteen million, two hundred forty thousand, eight hundred sixty-six".