19984414 has 4 divisors (see below), whose sum is σ = 29976624. Its totient is φ = 9992206.

The previous prime is 19984381. The next prime is 19984417. The reversal of 19984414 is 41448991.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19984417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4996102 + ... + 4996105.

It is an arithmetic number, because the mean of its divisors is an integer number (7494156).

Almost surely, 2^19984414 is an apocalyptic number.

19984414 is a deficient number, since it is larger than the sum of its proper divisors (9992210).

19984414 is an equidigital number, since it uses as much as digits as its factorization.

19984414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9992209.

The product of its digits is 41472, while the sum is 40.

The square root of 19984414 is about 4470.3930475966. The cubic root of 19984414 is about 271.3712318134.

The spelling of 19984414 in words is "nineteen million, nine hundred eighty-four thousand, four hundred fourteen".