118815408 has 30 divisors (see below), whose sum is σ = 332518524. Its totient is φ = 39605088.

The previous prime is 118815391. The next prime is 118815451. The reversal of 118815408 is 804518811.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 412410 + ... + 412697.

Almost surely, 2^118815408 is an apocalyptic number.

118815408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

118815408 is an abundant number, since it is smaller than the sum of its proper divisors (213703116).

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

118815408 is a wasteful number, since it uses less digits than its factorization.

118815408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825121 (or 825112 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 36.

The square root of 118815408 is about 10900.2480705716. The cubic root of 118815408 is about 491.6140141389.

The spelling of 118815408 in words is "one hundred eighteen million, eight hundred fifteen thousand, four hundred eight".