206740 has 12 divisors (see below), whose sum is σ = 434196. Its totient is φ = 82688.

The previous prime is 206699. The next prime is 206749. The reversal of 206740 is 47602.

206740 is digitally balanced in base 2, 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 2 ways, for example, as 35344 + 171396 = 188^2 + 414^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206749) 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, 5149 + ... + 5188.

It is an arithmetic number, because the mean of its divisors is an integer number (36183).

2²⁰⁶⁷⁴⁰ is an apocalyptic number.

206740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206740 is an abundant number, since it is smaller than the sum of its proper divisors (227456).

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

206740 is a wasteful number, since it uses less digits than its factorization.

206740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10346 (or 10344 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 206740 is about 454.6867053258. The cubic root of 206740 is about 59.1300397083.

It can be divided in two parts, 206 and 740, that added together give a triangular number (946 = T₄₃).

The spelling of 206740 in words is "two hundred six thousand, seven hundred forty".