118670640 has 160 divisors (see below), whose sum is σ = 407116800. Its totient is φ = 28354560.

The previous prime is 118670627. The next prime is 118670647. The reversal of 118670640 is 46076811.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (118670647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208276 + ... + 208844.

It is an arithmetic number, because the mean of its divisors is an integer number (2544480).

Almost surely, 2^118670640 is an apocalyptic number.

118670640 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 118670640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203558400).

118670640 is an abundant number, since it is smaller than the sum of its proper divisors (288446160).

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

118670640 is a wasteful number, since it uses less digits than its factorization.

118670640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675 (or 669 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 118670640 is about 10893.6054637572. The cubic root of 118670640 is about 491.4142675921.

The spelling of 118670640 in words is "one hundred eighteen million, six hundred seventy thousand, six hundred forty".