198319849 has 8 divisors (see below), whose sum is σ = 244086080. Its totient is φ = 156912336.

The previous prime is 198319843. The next prime is 198319861. The reversal of 198319849 is 948913891.

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

It is a de Polignac number, because none of the positive numbers 2^k-198319849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 198319796 and 198319805.

It is not an unprimeable number, because it can be changed into a prime (198319843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1089579 + ... + 1089760.

It is an arithmetic number, because the mean of its divisors is an integer number (30510760).

Almost surely, 2^198319849 is an apocalyptic number.

It is an amenable number.

198319849 is a deficient number, since it is larger than the sum of its proper divisors (45766231).

198319849 is a wasteful number, since it uses less digits than its factorization.

198319849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179359.

The product of its digits is 559872, while the sum is 52.

The square root of 198319849 is about 14082.6080326053. The cubic root of 198319849 is about 583.1613433272.

The spelling of 198319849 in words is "one hundred ninety-eight million, three hundred nineteen thousand, eight hundred forty-nine".