206433266 has 16 divisors (see below), whose sum is σ = 336911064. Its totient is φ = 94293504.

The previous prime is 206433263. The next prime is 206433289. The reversal of 206433266 is 662334602.

It can be written as a sum of positive squares in 4 ways, for example, as 179694025 + 26739241 = 13405^2 + 5171^2 .

It is a super-2 number, since 2×206433266² = 85229386622853512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206433263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38405 + ... + 43448.

Almost surely, 2^206433266 is an apocalyptic number.

206433266 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

206433266 is a deficient number, since it is larger than the sum of its proper divisors (130477798).

206433266 is a wasteful number, since it uses less digits than its factorization.

206433266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81965.

The product of its (nonzero) digits is 31104, while the sum is 32.

The square root of 206433266 is about 14367.7857027449. The cubic root of 206433266 is about 591.0078207246.

Adding to 206433266 its reverse (662334602), we get a palindrome (868767868).

The spelling of 206433266 in words is "two hundred six million, four hundred thirty-three thousand, two hundred sixty-six".