989190 has 48 divisors (see below), whose sum is σ = 2667600. Its totient is φ = 254016.

The previous prime is 989173. The next prime is 989231. The reversal of 989190 is 91989.

It is a super-2 number, since 2×989190² = 1956993712200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

989190 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 23 ways as a sum of consecutive naturals, for example, 2421 + ... + 2799.

It is an arithmetic number, because the mean of its divisors is an integer number (55575).

2⁹⁸⁹¹⁹⁰ is an apocalyptic number.

989190 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 989190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1333800).

989190 is an abundant number, since it is smaller than the sum of its proper divisors (1678410).

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

989190 is a wasteful number, since it uses less digits than its factorization.

989190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The square root of 989190 is about 994.5803134991. The cubic root of 989190 is about 99.6383604113.

The spelling of 989190 in words is "nine hundred eighty-nine thousand, one hundred ninety".