118000640 has 88 divisors (see below), whose sum is σ = 298206960. Its totient is φ = 44679168.

The previous prime is 118000639. The next prime is 118000667. The reversal of 118000640 is 46000811.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 7 ways as a sum of consecutive naturals, for example, 96674 + ... + 97886.

Almost surely, 2^118000640 is an apocalyptic number.

118000640 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 118000640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149103480).

118000640 is an abundant number, since it is smaller than the sum of its proper divisors (180206320).

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

118000640 is a wasteful number, since it uses less digits than its factorization.

118000640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257 (or 1239 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 118000640 is about 10862.8099495480. The cubic root of 118000640 is about 490.4876999066.

The spelling of 118000640 in words is "one hundred eighteen million, six hundred forty", and thus it is an aban number.