206309212 has 24 divisors (see below), whose sum is σ = 391608000. Its totient is φ = 94717440.

The previous prime is 206309167. The next prime is 206309237. The reversal of 206309212 is 212903602.

It is a happy number.

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, 34212 + ... + 39787.

It is an arithmetic number, because the mean of its divisors is an integer number (16317000).

Almost surely, 2^206309212 is an apocalyptic number.

It is an amenable number.

206309212 is a deficient number, since it is larger than the sum of its proper divisors (185298788).

206309212 is a wasteful number, since it uses less digits than its factorization.

206309212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74061 (or 74059 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 206309212 is about 14363.4679656412. The cubic root of 206309212 is about 590.8894102622.

The spelling of 206309212 in words is "two hundred six million, three hundred nine thousand, two hundred twelve".