115949886 has 48 divisors (see below), whose sum is σ = 257327280. Its totient is φ = 34794240.

The previous prime is 115949861. The next prime is 115949891. The reversal of 115949886 is 688949511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40180 + ... + 42968.

It is an arithmetic number, because the mean of its divisors is an integer number (5360985).

Almost surely, 2^115949886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115949886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128663640).

115949886 is an abundant number, since it is smaller than the sum of its proper divisors (141377394).

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

115949886 is a wasteful number, since it uses less digits than its factorization.

115949886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861 (or 2848 counting only the distinct ones).

The product of its digits is 622080, while the sum is 51.

The square root of 115949886 is about 10768.0028789001. The cubic root of 115949886 is about 487.6296544032.

The spelling of 115949886 in words is "one hundred fifteen million, nine hundred forty-nine thousand, eight hundred eighty-six".