118020618 has 16 divisors (see below), whose sum is σ = 262268160. Its totient is φ = 39340188.

The previous prime is 118020611. The next prime is 118020629. The reversal of 118020618 is 816020811.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 118020591 and 118020600.

It is not an unprimeable number, because it can be changed into a prime (118020611) by changing a digit.

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, 1092730 + ... + 1092837.

It is an arithmetic number, because the mean of its divisors is an integer number (16391760).

Almost surely, 2^118020618 is an apocalyptic number.

118020618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

118020618 is an abundant number, since it is smaller than the sum of its proper divisors (144247542).

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

118020618 is a wasteful number, since it uses less digits than its factorization.

118020618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185578 (or 2185572 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 118020618 is about 10863.7294701221. The cubic root of 118020618 is about 490.5153788817.

The spelling of 118020618 in words is "one hundred eighteen million, twenty thousand, six hundred eighteen".