118578216 has 32 divisors (see below), whose sum is σ = 306669600. Its totient is φ = 38162880.

The previous prime is 118578209. The next prime is 118578269. The reversal of 118578216 is 612875811.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84490 + ... + 85881.

It is an arithmetic number, because the mean of its divisors is an integer number (9583425).

Almost surely, 2^118578216 is an apocalyptic number.

It is an amenable number.

118578216 is an abundant number, since it is smaller than the sum of its proper divisors (188091384).

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

118578216 is a wasteful number, since it uses less digits than its factorization.

118578216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170409 (or 170405 counting only the distinct ones).

The product of its digits is 26880, while the sum is 39.

The square root of 118578216 is about 10889.3625157766. The cubic root of 118578216 is about 491.2866587513.

It can be divided in two parts, 1185 and 78216, that added together give a triangular number (79401 = T₃₉₈).

The spelling of 118578216 in words is "one hundred eighteen million, five hundred seventy-eight thousand, two hundred sixteen".