20084439 has 8 divisors (see below), whose sum is σ = 26877040. Its totient is φ = 13340736.

The previous prime is 20084437. The next prime is 20084447. The reversal of 20084439 is 93448002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20084439 - 2¹ = 20084437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20084431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11254 + ... + 12915.

It is an arithmetic number, because the mean of its divisors is an integer number (3359630).

Almost surely, 2^20084439 is an apocalyptic number.

20084439 is a deficient number, since it is larger than the sum of its proper divisors (6792601).

20084439 is a wasteful number, since it uses less digits than its factorization.

20084439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24449.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 20084439 is about 4481.5665787758. The cubic root of 20084439 is about 271.8232298308.

The spelling of 20084439 in words is "twenty million, eighty-four thousand, four hundred thirty-nine".