189842 has 8 divisors (see below), whose sum is σ = 297216. Its totient is φ = 90772.

The previous prime is 189823. The next prime is 189851. The reversal of 189842 is 248981.

It is a happy number.

189842 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 sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 189799 and 189808.

It is an unprimeable number.

189842 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, 2018 + ... + 2109.

It is an arithmetic number, because the mean of its divisors is an integer number (37152).

2¹⁸⁹⁸⁴² is an apocalyptic number.

189842 is a deficient number, since it is larger than the sum of its proper divisors (107374).

189842 is a wasteful number, since it uses less digits than its factorization.

189842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4152.

The product of its digits is 4608, while the sum is 32.

The square root of 189842 is about 435.7086182301. The cubic root of 189842 is about 57.4730308309.

The spelling of 189842 in words is "one hundred eighty-nine thousand, eight hundred forty-two".