198814834 has 4 divisors (see below), whose sum is σ = 298222254. Its totient is φ = 99407416.

The previous prime is 198814831. The next prime is 198814867. The reversal of 198814834 is 438418891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 438418891 = 7963 ⋅55057.

It can be written as a sum of positive squares in only one way, i.e., 193126609 + 5688225 = 13897^2 + 2385^2 .

It is not an unprimeable number, because it can be changed into a prime (198814831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49703707 + ... + 49703710.

Almost surely, 2^198814834 is an apocalyptic number.

198814834 is a deficient number, since it is larger than the sum of its proper divisors (99407420).

198814834 is an equidigital number, since it uses as much as digits as its factorization.

198814834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99407419.

The product of its digits is 221184, while the sum is 46.

The square root of 198814834 is about 14100.1714173977. The cubic root of 198814834 is about 583.6461095603.

The spelling of 198814834 in words is "one hundred ninety-eight million, eight hundred fourteen thousand, eight hundred thirty-four".