206880222 has 16 divisors (see below), whose sum is σ = 415618560. Its totient is φ = 68650392.

The previous prime is 206880217. The next prime is 206880251. The reversal of 206880222 is 222088602.

It is a self number, because there is not a number n which added to its sum of digits gives 206880222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75972 + ... + 78647.

It is an arithmetic number, because the mean of its divisors is an integer number (25976160).

Almost surely, 2^206880222 is an apocalyptic number.

206880222 is an abundant number, since it is smaller than the sum of its proper divisors (208738338).

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

206880222 is a wasteful number, since it uses less digits than its factorization.

206880222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154847.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 206880222 is about 14383.3313943606. The cubic root of 206880222 is about 591.4340506022.

The spelling of 206880222 in words is "two hundred six million, eight hundred eighty thousand, two hundred twenty-two".