16519842 has 64 divisors (see below), whose sum is σ = 39260160. Its totient is φ = 5136912.

The previous prime is 16519817. The next prime is 16519849. The reversal of 16519842 is 24891561.

It is a junction number, because it is equal to n+sod(n) for n = 16519797 and 16519806.

It is not an unprimeable number, because it can be changed into a prime (16519849) 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 in 31 ways as a sum of consecutive naturals, for example, 58233 + ... + 58515.

It is an arithmetic number, because the mean of its divisors is an integer number (613440).

Almost surely, 2^16519842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16519842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19630080).

16519842 is an abundant number, since it is smaller than the sum of its proper divisors (22740318).

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

16519842 is a wasteful number, since it uses less digits than its factorization.

16519842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 358 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 16519842 is about 4064.4608498545. The cubic root of 16519842 is about 254.6841764806.

The spelling of 16519842 in words is "sixteen million, five hundred nineteen thousand, eight hundred forty-two".