206984280 has 64 divisors (see below), whose sum is σ = 621900000. Its totient is φ = 55111680.

The previous prime is 206984279. The next prime is 206984317. The reversal of 206984280 is 82489602.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149190 + ... + 150570.

Almost surely, 2^206984280 is an apocalyptic number.

206984280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206984280 is an abundant number, since it is smaller than the sum of its proper divisors (414915720).

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

206984280 is a wasteful number, since it uses less digits than its factorization.

206984280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644 (or 2640 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 206984280 is about 14386.9482518010. The cubic root of 206984280 is about 591.5331951349.

The spelling of 206984280 in words is "two hundred six million, nine hundred eighty-four thousand, two hundred eighty".