19849398 has 16 divisors (see below), whose sum is σ = 41068080. Its totient is φ = 6388256.

The previous prime is 19849397. The next prime is 19849411. The reversal of 19849398 is 89394891.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 19849398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19849397) 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, 56865 + ... + 57212.

It is an arithmetic number, because the mean of its divisors is an integer number (2566755).

Almost surely, 2^19849398 is an apocalyptic number.

19849398 is an abundant number, since it is smaller than the sum of its proper divisors (21218682).

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

19849398 is a wasteful number, since it uses less digits than its factorization.

19849398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114111.

The product of its digits is 559872, while the sum is 51.

The square root of 19849398 is about 4455.2663220059. The cubic root of 19849398 is about 270.7587164436.

The spelling of 19849398 in words is "nineteen million, eight hundred forty-nine thousand, three hundred ninety-eight".