206238764 has 24 divisors (see below), whose sum is σ = 382702320. Its totient is φ = 96912896.

The previous prime is 206238751. The next prime is 206238779. The reversal of 206238764 is 467832602.

It is an unprimeable number.

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, 56507 + ... + 60045.

It is an arithmetic number, because the mean of its divisors is an integer number (15945930).

Almost surely, 2^206238764 is an apocalyptic number.

It is an amenable number.

206238764 is a deficient number, since it is larger than the sum of its proper divisors (176463556).

206238764 is a wasteful number, since it uses less digits than its factorization.

206238764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4417 (or 4415 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 206238764 is about 14361.0154237087. The cubic root of 206238764 is about 590.8221459913.

The spelling of 206238764 in words is "two hundred six million, two hundred thirty-eight thousand, seven hundred sixty-four".