206883980 has 12 divisors (see below), whose sum is σ = 434456400. Its totient is φ = 82753584.

The previous prime is 206883973. The next prime is 206883997. The reversal of 206883980 is 89388602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5172080 + ... + 5172119.

It is an arithmetic number, because the mean of its divisors is an integer number (36204700).

Almost surely, 2^206883980 is an apocalyptic number.

206883980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206883980 is an abundant number, since it is smaller than the sum of its proper divisors (227572420).

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

206883980 is a wasteful number, since it uses less digits than its factorization.

206883980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10344208 (or 10344206 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 206883980 is about 14383.4620310967. The cubic root of 206883980 is about 591.4376317335.

The spelling of 206883980 in words is "two hundred six million, eight hundred eighty-three thousand, nine hundred eighty".