988188 has 12 divisors (see below), whose sum is σ = 2305800. Its totient is φ = 329392.

The previous prime is 988157. The next prime is 988199. The reversal of 988188 is 881889.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 988188.

It is an unprimeable number.

988188 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 3 ways as a sum of consecutive naturals, for example, 41163 + ... + 41186.

It is an arithmetic number, because the mean of its divisors is an integer number (192150).

2⁹⁸⁸¹⁸⁸ is an apocalyptic number.

It is an amenable number.

988188 is an abundant number, since it is smaller than the sum of its proper divisors (1317612).

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

988188 is a wasteful number, since it uses less digits than its factorization.

988188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82356 (or 82354 counting only the distinct ones).

The product of its digits is 36864, while the sum is 42.

The square root of 988188 is about 994.0764558121. The cubic root of 988188 is about 99.6047061533.

It can be divided in two parts, 988 and 188, that added together give a triangular number (1176 = T₄₈).

The spelling of 988188 in words is "nine hundred eighty-eight thousand, one hundred eighty-eight".