206886120 has 128 divisors (see below), whose sum is σ = 714147840. Its totient is φ = 46967040.

The previous prime is 206886103. The next prime is 206886131. The reversal of 206886120 is 21688602.

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 31 ways as a sum of consecutive naturals, for example, 136165 + ... + 137675.

It is an arithmetic number, because the mean of its divisors is an integer number (5579280).

Almost surely, 2^206886120 is an apocalyptic number.

206886120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206886120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357073920).

206886120 is an abundant number, since it is smaller than the sum of its proper divisors (507261720).

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

206886120 is a wasteful number, since it uses less digits than its factorization.

206886120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695 (or 1691 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 206886120 is about 14383.5364218957. The cubic root of 206886120 is about 591.4396709959.

It can be divided in two parts, 2068 and 86120, that added together give a palindrome (88188).

The spelling of 206886120 in words is "two hundred six million, eight hundred eighty-six thousand, one hundred twenty".