118284660 has 72 divisors (see below), whose sum is σ = 386404200. Its totient is φ = 29115648.

The previous prime is 118284643. The next prime is 118284667. The reversal of 118284660 is 66482811.

It can be written as a sum of positive squares in 4 ways, for example, as 8538084 + 109746576 = 2922^2 + 10476^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118284667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22935 + ... + 27614.

It is an arithmetic number, because the mean of its divisors is an integer number (5366725).

Almost surely, 2^118284660 is an apocalyptic number.

118284660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118284660 is an abundant number, since it is smaller than the sum of its proper divisors (268119540).

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

118284660 is a wasteful number, since it uses less digits than its factorization.

118284660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50577 (or 50572 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 118284660 is about 10875.8751372016. The cubic root of 118284660 is about 490.8809087824.

The spelling of 118284660 in words is "one hundred eighteen million, two hundred eighty-four thousand, six hundred sixty".