118315890 has 240 divisors, whose sum is σ = 405212544. Its totient is φ = 24494400.

The previous prime is 118315877. The next prime is 118315909. The reversal of 118315890 is 98513811.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 436455 + ... + 436725.

Almost surely, 2^118315890 is an apocalyptic number.

118315890 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 118315890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202606272).

118315890 is an abundant number, since it is smaller than the sum of its proper divisors (286896654).

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

118315890 is a wasteful number, since it uses less digits than its factorization.

118315890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The square root of 118315890 is about 10877.3107889772. The cubic root of 118315890 is about 490.9241064431.

The spelling of 118315890 in words is "one hundred eighteen million, three hundred fifteen thousand, eight hundred ninety".