118649868 has 24 divisors (see below), whose sum is σ = 293135472. Its totient is φ = 37223424.

The previous prime is 118649807. The next prime is 118649873. The reversal of 118649868 is 868946811.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 118649868.

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, 290605 + ... + 291012.

It is an arithmetic number, because the mean of its divisors is an integer number (12213978).

Almost surely, 2^118649868 is an apocalyptic number.

It is an amenable number.

118649868 is an abundant number, since it is smaller than the sum of its proper divisors (174485604).

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

118649868 is a wasteful number, since it uses less digits than its factorization.

118649868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581641 (or 581639 counting only the distinct ones).

The product of its digits is 663552, while the sum is 51.

The square root of 118649868 is about 10892.6520186775. The cubic root of 118649868 is about 491.3855936848.

The spelling of 118649868 in words is "one hundred eighteen million, six hundred forty-nine thousand, eight hundred sixty-eight".