206409050 has 12 divisors (see below), whose sum is σ = 383920926. Its totient is φ = 82563600.

The previous prime is 206409011. The next prime is 206409059. The reversal of 206409050 is 50904602.

206409050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 196252081 + 10156969 = 14009^2 + 3187^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (206409059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2064041 + ... + 2064140.

Almost surely, 2^206409050 is an apocalyptic number.

206409050 is a deficient number, since it is larger than the sum of its proper divisors (177511876).

206409050 is a wasteful number, since it uses less digits than its factorization.

206409050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128193 (or 4128188 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 206409050 is about 14366.9429594469. The cubic root of 206409050 is about 590.9847101002.

The spelling of 206409050 in words is "two hundred six million, four hundred nine thousand, fifty".