198239842 has 8 divisors (see below), whose sum is σ = 298032336. Its totient is φ = 98895732.

The previous prime is 198239837. The next prime is 198239851. The reversal of 198239842 is 248932891.

198239842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 198239792 and 198239801.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110988 + ... + 112759.

It is an arithmetic number, because the mean of its divisors is an integer number (37254042).

Almost surely, 2^198239842 is an apocalyptic number.

198239842 is a deficient number, since it is larger than the sum of its proper divisors (99792494).

198239842 is a wasteful number, since it uses less digits than its factorization.

198239842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224192.

The product of its digits is 248832, while the sum is 46.

The square root of 198239842 is about 14079.7671145513. The cubic root of 198239842 is about 583.0829123390.

The spelling of 198239842 in words is "one hundred ninety-eight million, two hundred thirty-nine thousand, eight hundred forty-two".