20085586 has 8 divisors (see below), whose sum is σ = 30159360. Its totient is φ = 10032468.

The previous prime is 20085577. The next prime is 20085589. The reversal of 20085586 is 68558002.

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 (20085589) 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, 2446 + ... + 6793.

It is an arithmetic number, because the mean of its divisors is an integer number (3769920).

Almost surely, 2^20085586 is an apocalyptic number.

20085586 is a deficient number, since it is larger than the sum of its proper divisors (10073774).

20085586 is a wasteful number, since it uses less digits than its factorization.

20085586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10328.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 20085586 is about 4481.6945455932. The cubic root of 20085586 is about 271.8284042399.

The spelling of 20085586 in words is "twenty million, eighty-five thousand, five hundred eighty-six".