118109892 has 24 divisors (see below), whose sum is σ = 277605216. Its totient is φ = 39082048.

The previous prime is 118109869. The next prime is 118109903. The reversal of 118109892 is 298901811.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 118109892.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34278 + ... + 37565.

It is an arithmetic number, because the mean of its divisors is an integer number (11566884).

Almost surely, 2^118109892 is an apocalyptic number.

118109892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

118109892 is an abundant number, since it is smaller than the sum of its proper divisors (159495324).

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

118109892 is a wasteful number, since it uses less digits than its factorization.

118109892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71987 (or 71985 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 39.

The square root of 118109892 is about 10867.8375033859. The cubic root of 118109892 is about 490.6390274270.

The spelling of 118109892 in words is "one hundred eighteen million, one hundred nine thousand, eight hundred ninety-two".