115686942 has 48 divisors (see below), whose sum is σ = 275438592. Its totient is φ = 32281200.

The previous prime is 115686913. The next prime is 115686973. The reversal of 115686942 is 249686511.

It is a super-2 number, since 2×115686942² = 26766937098622728, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 115686894 and 115686903.

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, 8067 + ... + 17217.

It is an arithmetic number, because the mean of its divisors is an integer number (5738304).

Almost surely, 2^115686942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115686942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137719296).

115686942 is an abundant number, since it is smaller than the sum of its proper divisors (159751650).

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

115686942 is a wasteful number, since it uses less digits than its factorization.

115686942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9213 (or 9206 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 115686942 is about 10755.7864426549. The cubic root of 115686942 is about 487.2607699332.

The spelling of 115686942 in words is "one hundred fifteen million, six hundred eighty-six thousand, nine hundred forty-two".