118284870 has 64 divisors (see below), whose sum is σ = 315581184. Its totient is φ = 28129920.

The previous prime is 118284869. The next prime is 118284889. The reversal of 118284870 is 78482811.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14109 + ... + 20871.

It is an arithmetic number, because the mean of its divisors is an integer number (4930956).

Almost surely, 2^118284870 is an apocalyptic number.

118284870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 118284870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157790592).

118284870 is an abundant number, since it is smaller than the sum of its proper divisors (197296314).

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

118284870 is a wasteful number, since it uses less digits than its factorization.

118284870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6837.

The product of its (nonzero) digits is 28672, while the sum is 39.

The square root of 118284870 is about 10875.8847915928. The cubic root of 118284870 is about 490.8811992820.

The spelling of 118284870 in words is "one hundred eighteen million, two hundred eighty-four thousand, eight hundred seventy".