20003044 has 6 divisors (see below), whose sum is σ = 35005334. Its totient is φ = 10001520.

The previous prime is 20003023. The next prime is 20003047. The reversal of 20003044 is 44030002.

It can be written as a sum of positive squares in only one way, i.e., 19713600 + 289444 = 4440^2 + 538^2 .

It is not an unprimeable number, because it can be changed into a prime (20003047) 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 as a sum of consecutive naturals, namely, 2500377 + ... + 2500384.

Almost surely, 2^20003044 is an apocalyptic number.

It is an amenable number.

20003044 is a deficient number, since it is larger than the sum of its proper divisors (15002290).

20003044 is a wasteful number, since it uses less digits than its factorization.

20003044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000765 (or 5000763 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 20003044 is about 4472.4762715972. The cubic root of 20003044 is about 271.4555321063.

Adding to 20003044 its reverse (44030002), we get a palindrome (64033046).

The spelling of 20003044 in words is "twenty million, three thousand, forty-four".