196019842 has 4 divisors (see below), whose sum is σ = 294029766. Its totient is φ = 98009920.

The previous prime is 196019833. The next prime is 196019849. The reversal of 196019842 is 248910691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 248910691 = 1609 ⋅154699.

It can be written as a sum of positive squares in only one way, i.e., 115541001 + 80478841 = 10749^2 + 8971^2 .

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 junction number, because it is equal to n+sod(n) for n = 196019795 and 196019804.

It is not an unprimeable number, because it can be changed into a prime (196019849) 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 as a sum of consecutive naturals, namely, 49004959 + ... + 49004962.

Almost surely, 2^196019842 is an apocalyptic number.

196019842 is a deficient number, since it is larger than the sum of its proper divisors (98009924).

196019842 is an equidigital number, since it uses as much as digits as its factorization.

196019842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98009923.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 196019842 is about 14000.7086249232. The cubic root of 196019842 is about 580.8981743831.

The spelling of 196019842 in words is "one hundred ninety-six million, nineteen thousand, eight hundred forty-two".