20286604 has 24 divisors (see below), whose sum is σ = 40246640. Its totient is φ = 8869824.

The previous prime is 20286601. The next prime is 20286613. The reversal of 20286604 is 40668202.

It is not an unprimeable number, because it can be changed into a prime (20286601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9279 + ... + 11254.

Almost surely, 2^20286604 is an apocalyptic number.

It is an amenable number.

20286604 is a deficient number, since it is larger than the sum of its proper divisors (19960036).

20286604 is a wasteful number, since it uses less digits than its factorization.

20286604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20569 (or 20567 counting only the distinct ones).

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

The square root of 20286604 is about 4504.0652748378. The cubic root of 20286604 is about 272.7322218765.

The spelling of 20286604 in words is "twenty million, two hundred eighty-six thousand, six hundred four".