118535640 has 32 divisors (see below), whose sum is σ = 355607280. Its totient is φ = 31609472.

The previous prime is 118535569. The next prime is 118535689. The reversal of 118535640 is 46535811.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 493779 + ... + 494018.

Almost surely, 2^118535640 is an apocalyptic number.

118535640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118535640 is an abundant number, since it is smaller than the sum of its proper divisors (237071640).

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

118535640 is a wasteful number, since it uses less digits than its factorization.

118535640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987811 (or 987807 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 118535640 is about 10887.4074048875. The cubic root of 118535640 is about 491.2278522087.

The spelling of 118535640 in words is "one hundred eighteen million, five hundred thirty-five thousand, six hundred forty".