206984238 has 16 divisors (see below), whose sum is σ = 418957056. Its totient is φ = 68163320.

The previous prime is 206984227. The next prime is 206984243. The reversal of 206984238 is 832489602.

It is a self number, because there is not a number n which added to its sum of digits gives 206984238.

It is a congruent number.

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, 207318 + ... + 208313.

It is an arithmetic number, because the mean of its divisors is an integer number (26184816).

Almost surely, 2^206984238 is an apocalyptic number.

206984238 is an abundant number, since it is smaller than the sum of its proper divisors (211972818).

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

206984238 is a wasteful number, since it uses less digits than its factorization.

206984238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415719.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 206984238 is about 14386.9467921446. The cubic root of 206984238 is about 591.5331551248.

The spelling of 206984238 in words is "two hundred six million, nine hundred eighty-four thousand, two hundred thirty-eight".