118224640 has 36 divisors (see below), whose sum is σ = 283188024. Its totient is φ = 47289344.

The previous prime is 118224637. The next prime is 118224661. The reversal of 118224640 is 46422811.

It is a junction number, because it is equal to n+sod(n) for n = 118224599 and 118224608.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 44902 + ... + 47461.

It is an arithmetic number, because the mean of its divisors is an integer number (7866334).

Almost surely, 2^118224640 is an apocalyptic number.

118224640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118224640 is an abundant number, since it is smaller than the sum of its proper divisors (164963384).

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

118224640 is an frugal number, since it uses more digits than its factorization.

118224640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92384 (or 92370 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 118224640 is about 10873.1154688985. The cubic root of 118224640 is about 490.7978671413.

The spelling of 118224640 in words is "one hundred eighteen million, two hundred twenty-four thousand, six hundred forty".