20330039 has 4 divisors (see below), whose sum is σ = 20432400. Its totient is φ = 20227680.

The previous prime is 20329993. The next prime is 20330047. The reversal of 20330039 is 93003302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20330039 - 2²⁰ = 19281463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20330039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330059) 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, 50882 + ... + 51279.

It is an arithmetic number, because the mean of its divisors is an integer number (5108100).

Almost surely, 2^20330039 is an apocalyptic number.

20330039 is a deficient number, since it is larger than the sum of its proper divisors (102361).

20330039 is a wasteful number, since it uses less digits than its factorization.

20330039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102360.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 20330039 is about 4508.8844518351. The cubic root of 20330039 is about 272.9267292083.

The spelling of 20330039 in words is "twenty million, three hundred thirty thousand, thirty-nine".