20286698 has 8 divisors (see below), whose sum is σ = 30490020. Its totient is φ = 10123360.

The previous prime is 20286697. The next prime is 20286703. The reversal of 20286698 is 89668202.

It can be written as a sum of positive squares in 2 ways, for example, as 19651489 + 635209 = 4433^2 + 797^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20286697) by changing a digit.

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, 8693 + ... + 10776.

Almost surely, 2^20286698 is an apocalyptic number.

20286698 is a deficient number, since it is larger than the sum of its proper divisors (10203322).

20286698 is a wasteful number, since it uses less digits than its factorization.

20286698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19992.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 20286698 is about 4504.0757098433. The cubic root of 20286698 is about 272.7326431198.

The spelling of 20286698 in words is "twenty million, two hundred eighty-six thousand, six hundred ninety-eight".