118563840 has 264 divisors, whose sum is σ = 429182208. Its totient is φ = 30228480.

The previous prime is 118563839. The next prime is 118563877. The reversal of 118563840 is 48365811.

118563840 is a `hidden beast` number, since 1 + 18 + 5 + 638 + 4 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 118563795 and 118563804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1428439 + ... + 1428521.

Almost surely, 2^118563840 is an apocalyptic number.

118563840 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 118563840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214591104).

118563840 is an abundant number, since it is smaller than the sum of its proper divisors (310618368).

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

118563840 is a wasteful number, since it uses less digits than its factorization.

118563840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 118563840 is about 10888.7024020312. The cubic root of 118563840 is about 491.2668040015.

It can be divided in two parts, 1185 and 63840, that added together give a square (65025 = 255²).

The spelling of 118563840 in words is "one hundred eighteen million, five hundred sixty-three thousand, eight hundred forty".