340189 has 4 divisors (see below), whose sum is σ = 343420. Its totient is φ = 336960.

The previous prime is 340183. The next prime is 340201. The reversal of 340189 is 981043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80089 + 260100 = 283^2 + 510^2 .

It is a cyclic number.

It is not a de Polignac number, because 340189 - 2⁷ = 340061 is a prime.

It is a Duffinian number.

340189 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1452 + ... + 1669.

It is an arithmetic number, because the mean of its divisors is an integer number (85855).

2³⁴⁰¹⁸⁹ is an apocalyptic number.

It is an amenable number.

340189 is a deficient number, since it is larger than the sum of its proper divisors (3231).

340189 is a wasteful number, since it uses less digits than its factorization.

340189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 340189 is about 583.2572331313. The cubic root of 340189 is about 69.8082507358.

It can be divided in two parts, 340 and 189, that added together give a square (529 = 23²).

The spelling of 340189 in words is "three hundred forty thousand, one hundred eighty-nine".