206894280 has 64 divisors (see below), whose sum is σ = 623246400. Its totient is φ = 54944000.

The previous prime is 206894257. The next prime is 206894321. The reversal of 206894280 is 82498602.

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 15 ways as a sum of consecutive naturals, for example, 26686 + ... + 33554.

It is an arithmetic number, because the mean of its divisors is an integer number (9738225).

Almost surely, 2^206894280 is an apocalyptic number.

206894280 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 206894280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311623200).

206894280 is an abundant number, since it is smaller than the sum of its proper divisors (416352120).

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

206894280 is a wasteful number, since it uses less digits than its factorization.

206894280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7134 (or 7130 counting only the distinct ones).

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

The square root of 206894280 is about 14383.8200767390. The cubic root of 206894280 is about 591.4474467459.

The spelling of 206894280 in words is "two hundred six million, eight hundred ninety-four thousand, two hundred eighty".