20286682 has 8 divisors (see below), whose sum is σ = 32770836. Its totient is φ = 9363072.

The previous prime is 20286671. The next prime is 20286697. The reversal of 20286682 is 28668202.

It can be written as a sum of positive squares in 2 ways, for example, as 19971961 + 314721 = 4469^2 + 561^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 390103 + ... + 390154.

Almost surely, 2^20286682 is an apocalyptic number.

20286682 is a deficient number, since it is larger than the sum of its proper divisors (12484154).

20286682 is a wasteful number, since it uses less digits than its factorization.

20286682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780272.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 20286682 is about 4504.0739336738. The cubic root of 20286682 is about 272.7325714189.

The spelling of 20286682 in words is "twenty million, two hundred eighty-six thousand, six hundred eighty-two".