206280256 has 56 divisors (see below), whose sum is σ = 503814080. Its totient is φ = 81603072.

The previous prime is 206280247. The next prime is 206280281. The reversal of 206280256 is 652082602.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11886 + ... + 23533.

It is an arithmetic number, because the mean of its divisors is an integer number (8996680).

Almost surely, 2^206280256 is an apocalyptic number.

206280256 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

206280256 is an abundant number, since it is smaller than the sum of its proper divisors (297533824).

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

206280256 is a wasteful number, since it uses less digits than its factorization.

206280256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35451 (or 35441 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 206280256 is about 14362.4599564281. The cubic root of 206280256 is about 590.8617647132.

The spelling of 206280256 in words is "two hundred six million, two hundred eighty thousand, two hundred fifty-six".