118640508 has 96 divisors (see below), whose sum is σ = 330946560. Its totient is φ = 32363520.

The previous prime is 118640507. The next prime is 118640519. The reversal of 118640508 is 805046811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118640507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275053 + ... + 275483.

It is an arithmetic number, because the mean of its divisors is an integer number (3447360).

Almost surely, 2^118640508 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118640508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165473280).

118640508 is an abundant number, since it is smaller than the sum of its proper divisors (212306052).

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

118640508 is a wasteful number, since it uses less digits than its factorization.

118640508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 118640508 is about 10892.2223627688. Note that the first 3 decimals coincide. The cubic root of 118640508 is about 491.3726719395.

The spelling of 118640508 in words is "one hundred eighteen million, six hundred forty thousand, five hundred eight".