206064220 has 12 divisors (see below), whose sum is σ = 432734904. Its totient is φ = 82425680.

The previous prime is 206064203. The next prime is 206064239. The reversal of 206064220 is 22460602.

It is a happy number.

206064220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 206064191 and 206064200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5151586 + ... + 5151625.

It is an arithmetic number, because the mean of its divisors is an integer number (36061242).

Almost surely, 2^206064220 is an apocalyptic number.

206064220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206064220 is an abundant number, since it is smaller than the sum of its proper divisors (226670684).

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

206064220 is a wasteful number, since it uses less digits than its factorization.

206064220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10303220 (or 10303218 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 206064220 is about 14354.9371297822. The cubic root of 206064220 is about 590.6554240741.

The spelling of 206064220 in words is "two hundred six million, sixty-four thousand, two hundred twenty".