20039704 has 16 divisors (see below), whose sum is σ = 38212200. Its totient is φ = 9849792.

The previous prime is 20039687. The next prime is 20039707. The reversal of 20039704 is 40793002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20039707) 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, 20757 + ... + 21700.

Almost surely, 2^20039704 is an apocalyptic number.

It is an amenable number.

20039704 is a deficient number, since it is larger than the sum of its proper divisors (18172496).

20039704 is a wasteful number, since it uses less digits than its factorization.

20039704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42522 (or 42518 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 20039704 is about 4476.5727962360. The cubic root of 20039704 is about 271.6212649903.

The spelling of 20039704 in words is "twenty million, thirty-nine thousand, seven hundred four".