206434306 has 8 divisors (see below), whose sum is σ = 333470844. Its totient is φ = 95277360.

The previous prime is 206434289. The next prime is 206434307. The reversal of 206434306 is 603434602.

It can be written as a sum of positive squares in 2 ways, for example, as 203319081 + 3115225 = 14259^2 + 1765^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (206434307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3969865 + ... + 3969916.

Almost surely, 2^206434306 is an apocalyptic number.

206434306 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

206434306 is a deficient number, since it is larger than the sum of its proper divisors (127036538).

206434306 is a wasteful number, since it uses less digits than its factorization.

206434306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7939796.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 206434306 is about 14367.8218947758. The cubic root of 206434306 is about 591.0088132118.

Adding to 206434306 its reverse (603434602), we get a palindrome (809868908).

The spelling of 206434306 in words is "two hundred six million, four hundred thirty-four thousand, three hundred six".