20044936 has 32 divisors (see below), whose sum is σ = 38880000. Its totient is φ = 9682816.

The previous prime is 20044919. The next prime is 20044939. The reversal of 20044936 is 63944002.

It is a super-3 number, since 3×20044936³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20044939) 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, 33165 + ... + 33763.

It is an arithmetic number, because the mean of its divisors is an integer number (1215000).

Almost surely, 2^20044936 is an apocalyptic number.

It is an amenable number.

20044936 is a deficient number, since it is larger than the sum of its proper divisors (18835064).

20044936 is a wasteful number, since it uses less digits than its factorization.

20044936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 20044936 is about 4477.1571337178. The cubic root of 20044936 is about 271.6449013806.

Adding to 20044936 its reverse (63944002), we get a palindrome (83988938).

The spelling of 20044936 in words is "twenty million, forty-four thousand, nine hundred thirty-six".