189434 has 12 divisors (see below), whose sum is σ = 330714. Its totient is φ = 81144.

The previous prime is 189433. The next prime is 189437. The reversal of 189434 is 434981.

189434 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 only one way, i.e., 148225 + 41209 = 385^2 + 203^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 189397 and 189406.

It is not an unprimeable number, because it can be changed into a prime (189433) 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, 869 + ... + 1064.

2¹⁸⁹⁴³⁴ is an apocalyptic number.

189434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

189434 is a deficient number, since it is larger than the sum of its proper divisors (141280).

189434 is a wasteful number, since it uses less digits than its factorization.

189434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949 (or 1942 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 189434 is about 435.2401635879. The cubic root of 189434 is about 57.4318284711.

The spelling of 189434 in words is "one hundred eighty-nine thousand, four hundred thirty-four".