206445912 has 32 divisors (see below), whose sum is σ = 516466800. Its totient is φ = 68768384.

The previous prime is 206445893. The next prime is 206445929. The reversal of 206445912 is 219544602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68338 + ... + 71294.

Almost surely, 2^206445912 is an apocalyptic number.

It is an amenable number.

206445912 is an abundant number, since it is smaller than the sum of its proper divisors (310020888).

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

206445912 is a wasteful number, since it uses less digits than its factorization.

206445912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5875 (or 5871 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 206445912 is about 14368.2257777361. The cubic root of 206445912 is about 591.0198887607.

The spelling of 206445912 in words is "two hundred six million, four hundred forty-five thousand, nine hundred twelve".