206042086 has 8 divisors (see below), whose sum is σ = 309199464. Its totient is φ = 102975600.

The previous prime is 206042077. The next prime is 206042093. The reversal of 206042086 is 680240602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 16740 + ... + 26311.

It is an arithmetic number, because the mean of its divisors is an integer number (38649933).

Almost surely, 2^206042086 is an apocalyptic number.

206042086 is a deficient number, since it is larger than the sum of its proper divisors (103157378).

206042086 is a wasteful number, since it uses less digits than its factorization.

206042086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45446.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 206042086 is about 14354.1661548137. The cubic root of 206042086 is about 590.6342752703.

Adding to 206042086 its reverse (680240602), we get a palindrome (886282688).

The spelling of 206042086 in words is "two hundred six million, forty-two thousand, eighty-six".