189850 has 12 divisors (see below), whose sum is σ = 353214. Its totient is φ = 75920.

The previous prime is 189823. The next prime is 189851. The reversal of 189850 is 58981.

It can be written as a sum of positive squares in 3 ways, for example, as 78961 + 110889 = 281^2 + 333^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (189851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1849 + ... + 1948.

2¹⁸⁹⁸⁵⁰ is an apocalyptic number.

189850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189850 is a deficient number, since it is larger than the sum of its proper divisors (163364).

189850 is a wasteful number, since it uses less digits than its factorization.

189850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3809 (or 3804 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 189850 is about 435.7177985807. The cubic root of 189850 is about 57.4738381299.

The spelling of 189850 in words is "one hundred eighty-nine thousand, eight hundred fifty".