118745640 has 96 divisors (see below), whose sum is σ = 415626120. Its totient is φ = 29228544.

The previous prime is 118745639. The next prime is 118745651. The reversal of 118745640 is 46547811.

It is a happy number.

118745640 is a `hidden beast` number, since 1 + 1 + 8 + 7 + 4 + 5 + 640 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 34363044 + 84382596 = 5862^2 + 9186^2 .

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 = 118745595 and 118745604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8007 + ... + 17366.

Almost surely, 2^118745640 is an apocalyptic number.

118745640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118745640 is an abundant number, since it is smaller than the sum of its proper divisors (296880480).

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

118745640 is a wasteful number, since it uses less digits than its factorization.

118745640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25403 (or 25396 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 118745640 is about 10897.0473064955. The cubic root of 118745640 is about 491.5177706109.

The spelling of 118745640 in words is "one hundred eighteen million, seven hundred forty-five thousand, six hundred forty".