19144842 has 16 divisors (see below), whose sum is σ = 38335680. Its totient is φ = 6373952.

The previous prime is 19144841. The next prime is 19144859. The reversal of 19144842 is 24844191.

It is not an unprimeable number, because it can be changed into a prime (19144841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6034 + ... + 8642.

It is an arithmetic number, because the mean of its divisors is an integer number (2395980).

Almost surely, 2^19144842 is an apocalyptic number.

19144842 is an abundant number, since it is smaller than the sum of its proper divisors (19190838).

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

19144842 is a wasteful number, since it uses less digits than its factorization.

19144842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3837.

The product of its digits is 9216, while the sum is 33.

The square root of 19144842 is about 4375.4819163150. The cubic root of 19144842 is about 267.5165133778.

The spelling of 19144842 in words is "nineteen million, one hundred forty-four thousand, eight hundred forty-two".