206410906 has 32 divisors (see below), whose sum is σ = 354161808. Its totient is φ = 89379840.

The previous prime is 206410891. The next prime is 206410907. The reversal of 206410906 is 609014602.

It can be written as a sum of positive squares in 8 ways, for example, as 15280281 + 191130625 = 3909^2 + 13825^2 .

It is not an unprimeable number, because it can be changed into a prime (206410907) by changing a digit.

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, 203256 + ... + 204268.

Almost surely, 2^206410906 is an apocalyptic number.

206410906 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

206410906 is a deficient number, since it is larger than the sum of its proper divisors (147750902).

206410906 is a wasteful number, since it uses less digits than its factorization.

206410906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 206410906 is about 14367.0075520270. The cubic root of 206410906 is about 590.9864814442.

The spelling of 206410906 in words is "two hundred six million, four hundred ten thousand, nine hundred six".