20003384 has 16 divisors (see below), whose sum is σ = 38520600. Its totient is φ = 9731232.

The previous prime is 20003383. The next prime is 20003393. The reversal of 20003384 is 48330002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003383) 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 3 ways as a sum of consecutive naturals, for example, 33494 + ... + 34085.

Almost surely, 2^20003384 is an apocalyptic number.

It is an amenable number.

20003384 is a deficient number, since it is larger than the sum of its proper divisors (18517216).

20003384 is a wasteful number, since it uses less digits than its factorization.

20003384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67622 (or 67618 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20003384 is about 4472.5142816988. The cubic root of 20003384 is about 271.4570701115.

Adding to 20003384 its reverse (48330002), we get a palindrome (68333386).

The spelling of 20003384 in words is "twenty million, three thousand, three hundred eighty-four".