118457808 has 80 divisors (see below), whose sum is σ = 361822080. Its totient is φ = 32675328.

The previous prime is 118457783. The next prime is 118457827. The reversal of 118457808 is 808754811.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 118457808.

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 15 ways as a sum of consecutive naturals, for example, 3666 + ... + 15822.

It is an arithmetic number, because the mean of its divisors is an integer number (4522776).

Almost surely, 2^118457808 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 118457808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180911040).

118457808 is an abundant number, since it is smaller than the sum of its proper divisors (243364272).

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

118457808 is a wasteful number, since it uses less digits than its factorization.

118457808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12204 (or 12198 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 42.

The square root of 118457808 is about 10883.8324132633. The cubic root of 118457808 is about 491.1203131951.

The spelling of 118457808 in words is "one hundred eighteen million, four hundred fifty-seven thousand, eight hundred eight".