19984098 has 16 divisors (see below), whose sum is σ = 40047840. Its totient is φ = 6648096.

The previous prime is 19984091. The next prime is 19984099. The reversal of 19984098 is 89048991.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19984091) 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 7 ways as a sum of consecutive naturals, for example, 238 + ... + 6326.

It is an arithmetic number, because the mean of its divisors is an integer number (2502990).

Almost surely, 2^19984098 is an apocalyptic number.

19984098 is an abundant number, since it is smaller than the sum of its proper divisors (20063742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19984098 is a wasteful number, since it uses less digits than its factorization.

19984098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6641.

The product of its (nonzero) digits is 186624, while the sum is 48.

The square root of 19984098 is about 4470.3577038085. The cubic root of 19984098 is about 271.3698014694.

The spelling of 19984098 in words is "nineteen million, nine hundred eighty-four thousand, ninety-eight".