206406046 has 32 divisors (see below), whose sum is σ = 394232832. Its totient is φ = 78704160.

The previous prime is 206406037. The next prime is 206406047. The reversal of 206406046 is 640604602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206406047) 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, 7021 + ... + 21496.

It is an arithmetic number, because the mean of its divisors is an integer number (12319776).

Almost surely, 2^206406046 is an apocalyptic number.

206406046 is a deficient number, since it is larger than the sum of its proper divisors (187826786).

206406046 is a wasteful number, since it uses less digits than its factorization.

206406046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28584.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 206406046 is about 14366.8384135133. The cubic root of 206406046 is about 590.9818430962.

The spelling of 206406046 in words is "two hundred six million, four hundred six thousand, forty-six".