20084419 has 2 divisors, whose sum is σ = 20084420. Its totient is φ = 20084418.

The previous prime is 20084411. The next prime is 20084431. The reversal of 20084419 is 91448002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20084419 - 2³ = 20084411 is a prime.

It is a super-2 number, since 2×20084419² = 806767773135122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20084411) 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 as a sum of consecutive naturals, namely, 10042209 + 10042210.

It is an arithmetic number, because the mean of its divisors is an integer number (10042210).

Almost surely, 2^20084419 is an apocalyptic number.

20084419 is a deficient number, since it is larger than the sum of its proper divisors (1).

20084419 is an equidigital number, since it uses as much as digits as its factorization.

20084419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 20084419 is about 4481.5643474126. The cubic root of 20084419 is about 271.8231396040.

It can be divided in two parts, 20084 and 419, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 20084419 in words is "twenty million, eighty-four thousand, four hundred nineteen".