205630466 has 4 divisors (see below), whose sum is σ = 308445702. Its totient is φ = 102815232.

The previous prime is 205630427. The next prime is 205630489. The reversal of 205630466 is 664036502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 185640625 + 19989841 = 13625^2 + 4471^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51407615 + ... + 51407618.

Almost surely, 2^205630466 is an apocalyptic number.

205630466 is a deficient number, since it is larger than the sum of its proper divisors (102815236).

205630466 is a wasteful number, since it uses less digits than its factorization.

205630466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102815235.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 205630466 is about 14339.8209891198. The cubic root of 205630466 is about 590.2407004100.

Adding to 205630466 its reverse (664036502), we get a palindrome (869666968).

The spelling of 205630466 in words is "two hundred five million, six hundred thirty thousand, four hundred sixty-six".