118979840 has 144 divisors (see below), whose sum is σ = 333580800. Its totient is φ = 40642560.

The previous prime is 118979831. The next prime is 118979857. The reversal of 118979840 is 48979811.

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 15 ways as a sum of consecutive naturals, for example, 438905 + ... + 439175.

Almost surely, 2^118979840 is an apocalyptic number.

118979840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118979840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166790400).

118979840 is an abundant number, since it is smaller than the sum of its proper divisors (214600960).

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

118979840 is an frugal number, since it uses more digits than its factorization.

118979840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 118979840 is about 10907.7880434119. The cubic root of 118979840 is about 491.8406957752.

The spelling of 118979840 in words is "one hundred eighteen million, nine hundred seventy-nine thousand, eight hundred forty".