206229880 has 32 divisors (see below), whose sum is σ = 468620640. Its totient is φ = 81673600.

The previous prime is 206229871. The next prime is 206229893. The reversal of 206229880 is 88922602.

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, 21484 + ... + 29563.

It is an arithmetic number, because the mean of its divisors is an integer number (14644395).

Almost surely, 2^206229880 is an apocalyptic number.

206229880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206229880 is an abundant number, since it is smaller than the sum of its proper divisors (262390760).

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

206229880 is a wasteful number, since it uses less digits than its factorization.

206229880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51159 (or 51155 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 206229880 is about 14360.7061107732. The cubic root of 206229880 is about 590.8136623949.

The spelling of 206229880 in words is "two hundred six million, two hundred twenty-nine thousand, eight hundred eighty".