118398 has 16 divisors (see below), whose sum is σ = 270720. Its totient is φ = 33816.

The previous prime is 118387. The next prime is 118399. The reversal of 118398 is 893811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118399) by changing a digit.

118398 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1368 + ... + 1451.

It is an arithmetic number, because the mean of its divisors is an integer number (16920).

2¹¹⁸³⁹⁸ is an apocalyptic number.

118398 is an abundant number, since it is smaller than the sum of its proper divisors (152322).

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

118398 is a wasteful number, since it uses less digits than its factorization.

118398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2831.

The product of its digits is 1728, while the sum is 30.

The square root of 118398 is about 344.0901044785. The cubic root of 118398 is about 49.1037645594.

It can be divided in two parts, 118 and 398, that multiplied together give a palindrome (46964).

The spelling of 118398 in words is "one hundred eighteen thousand, three hundred ninety-eight".