20286206 has 8 divisors (see below), whose sum is σ = 30945240. Its totient is φ = 9971128.

The previous prime is 20286199. The next prime is 20286223. The reversal of 20286206 is 60268202.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85841 + ... + 86076.

It is an arithmetic number, because the mean of its divisors is an integer number (3868155).

Almost surely, 2^20286206 is an apocalyptic number.

20286206 is a deficient number, since it is larger than the sum of its proper divisors (10659034).

20286206 is a wasteful number, since it uses less digits than its factorization.

20286206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171978.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 20286206 is about 4504.0210923130. The cubic root of 20286206 is about 272.7304383000.

The spelling of 20286206 in words is "twenty million, two hundred eighty-six thousand, two hundred six".