189330 has 16 divisors (see below), whose sum is σ = 454464. Its totient is φ = 50480.

The previous prime is 189311. The next prime is 189337. The reversal of 189330 is 33981.

189330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 189330.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189337) by changing a digit.

189330 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, 3126 + ... + 3185.

It is an arithmetic number, because the mean of its divisors is an integer number (28404).

2¹⁸⁹³³⁰ is an apocalyptic number.

189330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189330 is an abundant number, since it is smaller than the sum of its proper divisors (265134).

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

189330 is a wasteful number, since it uses less digits than its factorization.

189330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6321.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 189330 is about 435.1206729173. The cubic root of 189330 is about 57.4213164484.

The spelling of 189330 in words is "one hundred eighty-nine thousand, three hundred thirty".