20044585 has 8 divisors (see below), whose sum is σ = 26240256. Its totient is φ = 14577840.

The previous prime is 20044567. The next prime is 20044589. The reversal of 20044585 is 58544002.

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

It is a de Polignac number, because none of the positive numbers 2^k-20044585 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20044589) 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 7 ways as a sum of consecutive naturals, for example, 182169 + ... + 182278.

It is an arithmetic number, because the mean of its divisors is an integer number (3280032).

Almost surely, 2^20044585 is an apocalyptic number.

It is an amenable number.

20044585 is a deficient number, since it is larger than the sum of its proper divisors (6195671).

20044585 is a wasteful number, since it uses less digits than its factorization.

20044585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364463.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 20044585 is about 4477.1179345646. The cubic root of 20044585 is about 271.6433158111.

Adding to 20044585 its reverse (58544002), we get a palindrome (78588587).

The spelling of 20044585 in words is "twenty million, forty-four thousand, five hundred eighty-five".