206940 has 24 divisors (see below), whose sum is σ = 579600. Its totient is φ = 55168.

The previous prime is 206939. The next prime is 206951. The reversal of 206940 is 49602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1665 + ... + 1784.

It is an arithmetic number, because the mean of its divisors is an integer number (24150).

2²⁰⁶⁹⁴⁰ is an apocalyptic number.

206940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206940 is an abundant number, since it is smaller than the sum of its proper divisors (372660).

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

206940 is a wasteful number, since it uses less digits than its factorization.

206940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3461 (or 3459 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 206940 is about 454.9065838169. The cubic root of 206940 is about 59.1491010034.

The spelling of 206940 in words is "two hundred six thousand, nine hundred forty".