206450636 has 12 divisors (see below), whose sum is σ = 412901328. Its totient is φ = 88478832.

The previous prime is 206450609. The next prime is 206450653. The reversal of 206450636 is 636054602.

206450636 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3686591 + ... + 3686646.

It is an arithmetic number, because the mean of its divisors is an integer number (34408444).

Almost surely, 2^206450636 is an apocalyptic number.

It is an amenable number.

206450636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

206450636 is a wasteful number, since it uses less digits than its factorization.

206450636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7373248 (or 7373246 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 206450636 is about 14368.3901673082. The cubic root of 206450636 is about 591.0243967319.

The spelling of 206450636 in words is "two hundred six million, four hundred fifty thousand, six hundred thirty-six".