206631234 has 24 divisors (see below), whose sum is σ = 448340412. Its totient is φ = 68778720.

The previous prime is 206631221. The next prime is 206631301. The reversal of 206631234 is 432136602.

206631234 is a `hidden beast` number, since 2 + 0 + 6 + 631 + 23 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 128255625 + 78375609 = 11325^2 + 8853^2 .

It is a junction number, because it is equal to n+sod(n) for n = 206631198 and 206631207.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5364 + ... + 21024.

Almost surely, 2^206631234 is an apocalyptic number.

206631234 is an abundant number, since it is smaller than the sum of its proper divisors (241709178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206631234 is a wasteful number, since it uses less digits than its factorization.

206631234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16402 (or 16399 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 206631234 is about 14374.6733528105. The cubic root of 206631234 is about 591.1966844311.

Adding to 206631234 its reverse (432136602), we get a palindrome (638767836).

The spelling of 206631234 in words is "two hundred six million, six hundred thirty-one thousand, two hundred thirty-four".