206966438 has 16 divisors (see below), whose sum is σ = 355428384. Its totient is φ = 88542720.

The previous prime is 206966437. The next prime is 206966453. The reversal of 206966438 is 834669602.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206966437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4733 + ... + 20888.

It is an arithmetic number, because the mean of its divisors is an integer number (22214274).

Almost surely, 2^206966438 is an apocalyptic number.

206966438 is a deficient number, since it is larger than the sum of its proper divisors (148461946).

206966438 is a wasteful number, since it uses less digits than its factorization.

206966438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26207.

The product of its (nonzero) digits is 373248, while the sum is 44.

The square root of 206966438 is about 14386.3281625299. The cubic root of 206966438 is about 591.5161979688.

The spelling of 206966438 in words is "two hundred six million, nine hundred sixty-six thousand, four hundred thirty-eight".