198374636 has 12 divisors (see below), whose sum is σ = 347255160. Its totient is φ = 99158880.

The previous prime is 198374621. The next prime is 198374641. The reversal of 198374636 is 636473891.

It is a happy 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, 20480 + ... + 28568.

It is an arithmetic number, because the mean of its divisors is an integer number (28937930).

Almost surely, 2^198374636 is an apocalyptic number.

It is an amenable number.

198374636 is a deficient number, since it is larger than the sum of its proper divisors (148880524).

198374636 is a wasteful number, since it uses less digits than its factorization.

198374636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14224 (or 14222 counting only the distinct ones).

The product of its digits is 653184, while the sum is 47.

The square root of 198374636 is about 14084.5530990515. The cubic root of 198374636 is about 583.2150389424.

The spelling of 198374636 in words is "one hundred ninety-eight million, three hundred seventy-four thousand, six hundred thirty-six".