189680 has 20 divisors (see below), whose sum is σ = 441192. Its totient is φ = 75840.

The previous prime is 189671. The next prime is 189691. The reversal of 189680 is 86981.

189680 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

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, 1106 + ... + 1265.

2¹⁸⁹⁶⁸⁰ is an apocalyptic number.

189680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189680 is an abundant number, since it is smaller than the sum of its proper divisors (251512).

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

189680 is a wasteful number, since it uses less digits than its factorization.

189680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384 (or 2378 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 189680 is about 435.5226744958. The cubic root of 189680 is about 57.4566781435.

The spelling of 189680 in words is "one hundred eighty-nine thousand, six hundred eighty".