189320 has 16 divisors (see below), whose sum is σ = 426060. Its totient is φ = 75712.

The previous prime is 189311. The next prime is 189337. The reversal of 189320 is 23981.

189320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 178084 + 11236 = 422^2 + 106^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 189320.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2327 + ... + 2406.

2¹⁸⁹³²⁰ is an apocalyptic number.

189320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189320 is an abundant number, since it is smaller than the sum of its proper divisors (236740).

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

189320 is a wasteful number, since it uses less digits than its factorization.

189320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4744 (or 4740 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 189320 is about 435.1091817004. The cubic root of 189320 is about 57.4203054741.

The spelling of 189320 in words is "one hundred eighty-nine thousand, three hundred twenty".