118890 has 24 divisors (see below), whose sum is σ = 309348. Its totient is φ = 31680.

The previous prime is 118873. The next prime is 118891. The reversal of 118890 is 98811.

It can be written as a sum of positive squares in 2 ways, for example, as 114921 + 3969 = 339^2 + 63^2 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 571 + ... + 750.

2¹¹⁸⁸⁹⁰ is an apocalyptic number.

118890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118890 is an abundant number, since it is smaller than the sum of its proper divisors (190458).

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

118890 is a wasteful number, since it uses less digits than its factorization.

118890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334 (or 1331 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 118890 is about 344.8042923167. The cubic root of 118890 is about 49.1716870612.

The spelling of 118890 in words is "one hundred eighteen thousand, eight hundred ninety".