196239642 has 16 divisors (see below), whose sum is σ = 395953920. Its totient is φ = 64834112.

The previous prime is 196239599. The next prime is 196239647. The reversal of 196239642 is 246932691.

It is a junction number, because it is equal to n+sod(n) for n = 196239594 and 196239603.

It is not an unprimeable number, because it can be changed into a prime (196239647) 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, 144042 + ... + 145397.

It is an arithmetic number, because the mean of its divisors is an integer number (24747120).

Almost surely, 2^196239642 is an apocalyptic number.

196239642 is an abundant number, since it is smaller than the sum of its proper divisors (199714278).

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

196239642 is a wasteful number, since it uses less digits than its factorization.

196239642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289557.

The product of its digits is 139968, while the sum is 42.

The square root of 196239642 is about 14008.5560283707. The cubic root of 196239642 is about 581.1152165687.

The spelling of 196239642 in words is "one hundred ninety-six million, two hundred thirty-nine thousand, six hundred forty-two".