206443968 has 56 divisors (see below), whose sum is σ = 574974720. Its totient is φ = 65191680.

The previous prime is 206443967. The next prime is 206443997. The reversal of 206443968 is 869344602.

It is a happy number.

It is a super-2 number, since 2×206443968² = 85238223847170048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206443967) 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 7 ways as a sum of consecutive naturals, for example, 24648 + ... + 31943.

Almost surely, 2^206443968 is an apocalyptic number.

It is an amenable number.

206443968 is an abundant number, since it is smaller than the sum of its proper divisors (368530752).

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

206443968 is a wasteful number, since it uses less digits than its factorization.

206443968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56625 (or 56615 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The square root of 206443968 is about 14368.1581283058. The cubic root of 206443968 is about 591.0180336400.

The spelling of 206443968 in words is "two hundred six million, four hundred forty-three thousand, nine hundred sixty-eight".