196338478 has 8 divisors (see below), whose sum is σ = 336580272. Its totient is φ = 84145056.

The previous prime is 196338449. The next prime is 196338481. The reversal of 196338478 is 874833691.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7012075 + ... + 7012102.

It is an arithmetic number, because the mean of its divisors is an integer number (42072534).

Almost surely, 2^196338478 is an apocalyptic number.

196338478 is a deficient number, since it is larger than the sum of its proper divisors (140241794).

196338478 is a wasteful number, since it uses less digits than its factorization.

196338478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14024186.

The product of its digits is 870912, while the sum is 49.

The square root of 196338478 is about 14012.0832855075. The cubic root of 196338478 is about 581.2127596598.

The spelling of 196338478 in words is "one hundred ninety-six million, three hundred thirty-eight thousand, four hundred seventy-eight".