20084019 has 4 divisors (see below), whose sum is σ = 26778696. Its totient is φ = 13389344.

The previous prime is 20084017. The next prime is 20084027. The reversal of 20084019 is 91048002.

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 20084019 - 2¹ = 20084017 is a prime.

It is a super-2 number, since 2×20084019² = 806735638384722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20084019.

It is not an unprimeable number, because it can be changed into a prime (20084011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3347334 + ... + 3347339.

It is an arithmetic number, because the mean of its divisors is an integer number (6694674).

Almost surely, 2^20084019 is an apocalyptic number.

20084019 is a deficient number, since it is larger than the sum of its proper divisors (6694677).

20084019 is an equidigital number, since it uses as much as digits as its factorization.

20084019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6694676.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 20084019 is about 4481.5197199164. The cubic root of 20084019 is about 271.8213350546.

The spelling of 20084019 in words is "twenty million, eighty-four thousand, nineteen".