118107990 has 512 divisors, whose sum is σ = 464486400. Its totient is φ = 20528640.

The previous prime is 118107989. The next prime is 118108019. The reversal of 118107990 is 99701811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 5135119 + ... + 5135141.

It is an arithmetic number, because the mean of its divisors is an integer number (907200).

Almost surely, 2^118107990 is an apocalyptic number.

118107990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 118107990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232243200).

118107990 is an abundant number, since it is smaller than the sum of its proper divisors (346378410).

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

118107990 is a wasteful number, since it uses less digits than its factorization.

118107990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 36.

The square root of 118107990 is about 10867.7499971245. The cubic root of 118107990 is about 490.6363937203.

The spelling of 118107990 in words is "one hundred eighteen million, one hundred seven thousand, nine hundred ninety".