206378960 has 20 divisors (see below), whose sum is σ = 479831268. Its totient is φ = 82551552.

The previous prime is 206378951. The next prime is 206378971. The reversal of 206378960 is 69873602.

It can be written as a sum of positive squares in 2 ways, for example, as 51724864 + 154654096 = 7192^2 + 12436^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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 3 ways as a sum of consecutive naturals, for example, 1289789 + ... + 1289948.

Almost surely, 2^206378960 is an apocalyptic number.

206378960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206378960 is an abundant number, since it is smaller than the sum of its proper divisors (273452308).

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

206378960 is a wasteful number, since it uses less digits than its factorization.

206378960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579750 (or 2579744 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 206378960 is about 14365.8957256413. The cubic root of 206378960 is about 590.9559910847.

The spelling of 206378960 in words is "two hundred six million, three hundred seventy-eight thousand, nine hundred sixty".