20004044 has 12 divisors (see below), whose sum is σ = 35487144. Its totient is φ = 9864864.

The previous prime is 20004041. The next prime is 20004059. The reversal of 20004044 is 44040002.

It is not an unprimeable number, because it can be changed into a prime (20004041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33962 + ... + 34545.

It is an arithmetic number, because the mean of its divisors is an integer number (2957262).

Almost surely, 2^20004044 is an apocalyptic number.

It is an amenable number.

20004044 is a deficient number, since it is larger than the sum of its proper divisors (15483100).

20004044 is a wasteful number, since it uses less digits than its factorization.

20004044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68584 (or 68582 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 20004044 is about 4472.5880650916. The cubic root of 20004044 is about 271.4600556013.

Adding to 20004044 its reverse (44040002), we get a palindrome (64044046).

The spelling of 20004044 in words is "twenty million, four thousand, forty-four".