206631952 has 10 divisors (see below), whose sum is σ = 400349438. Its totient is φ = 103315968.

The previous prime is 206631911. The next prime is 206631959. The reversal of 206631952 is 259136602.

It can be written as a sum of positive squares in only one way, i.e., 202322176 + 4309776 = 14224^2 + 2076^2 .

It is not an unprimeable number, because it can be changed into a prime (206631959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6457233 + ... + 6457264.

Almost surely, 2^206631952 is an apocalyptic number.

It is an amenable number.

206631952 is a deficient number, since it is larger than the sum of its proper divisors (193717486).

206631952 is a wasteful number, since it uses less digits than its factorization.

206631952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12914505 (or 12914499 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 206631952 is about 14374.6983272693. The cubic root of 206631952 is about 591.1973691916.

The spelling of 206631952 in words is "two hundred six million, six hundred thirty-one thousand, nine hundred fifty-two".