118247840 has 48 divisors (see below), whose sum is σ = 282012192. Its totient is φ = 46850304.

The previous prime is 118247839. The next prime is 118247863. The reversal of 118247840 is 48742811.

It is a self number, because there is not a number n which added to its sum of digits gives 118247840.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13667 + ... + 20573.

It is an arithmetic number, because the mean of its divisors is an integer number (5875254).

Almost surely, 2^118247840 is an apocalyptic number.

118247840 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 118247840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141006096).

118247840 is an abundant number, since it is smaller than the sum of its proper divisors (163764352).

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

118247840 is a wasteful number, since it uses less digits than its factorization.

118247840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7029 (or 7021 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 118247840 is about 10874.1822681064. The cubic root of 118247840 is about 490.8299692078.

The spelling of 118247840 in words is "one hundred eighteen million, two hundred forty-seven thousand, eight hundred forty".