340188 has 12 divisors (see below), whose sum is σ = 793800. Its totient is φ = 113392.

The previous prime is 340183. The next prime is 340201. The reversal of 340188 is 881043.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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

340188 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, 14163 + ... + 14186.

It is an arithmetic number, because the mean of its divisors is an integer number (66150).

2³⁴⁰¹⁸⁸ is an apocalyptic number.

It is an amenable number.

340188 is an abundant number, since it is smaller than the sum of its proper divisors (453612).

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

340188 is a wasteful number, since it uses less digits than its factorization.

340188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28356 (or 28354 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 340188 is about 583.2563758760. The cubic root of 340188 is about 69.8081823343.

It can be divided in two parts, 340 and 188, that added together give a triangular number (528 = T₃₂).

The spelling of 340188 in words is "three hundred forty thousand, one hundred eighty-eight".