206434043 has 16 divisors (see below), whose sum is σ = 221760000. Its totient is φ = 191486592.

The previous prime is 206434003. The next prime is 206434061. The reversal of 206434043 is 340434602.

It is a cyclic number.

It is not a de Polignac number, because 206434043 - 2¹² = 206429947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206434003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470018 + ... + 470456.

It is an arithmetic number, because the mean of its divisors is an integer number (13860000).

Almost surely, 2^206434043 is an apocalyptic number.

206434043 is a deficient number, since it is larger than the sum of its proper divisors (15325957).

206434043 is a wasteful number, since it uses less digits than its factorization.

206434043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 206434043 is about 14367.8127423766. The cubic root of 206434043 is about 591.0085622274.

Adding to 206434043 its reverse (340434602), we get a palindrome (546868645).

The spelling of 206434043 in words is "two hundred six million, four hundred thirty-four thousand, forty-three".