16198834 has 4 divisors (see below), whose sum is σ = 24298254. Its totient is φ = 8099416.

The previous prime is 16198783. The next prime is 16198843. The reversal of 16198834 is 43889161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10220809 + 5978025 = 3197^2 + 2445^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4049707 + ... + 4049710.

Almost surely, 2^16198834 is an apocalyptic number.

16198834 is a deficient number, since it is larger than the sum of its proper divisors (8099420).

16198834 is an equidigital number, since it uses as much as digits as its factorization.

16198834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8099419.

The product of its digits is 41472, while the sum is 40.

The square root of 16198834 is about 4024.7775093786. Note that the first 3 decimals coincide. The cubic root of 16198834 is about 253.0237288122.

The spelling of 16198834 in words is "sixteen million, one hundred ninety-eight thousand, eight hundred thirty-four".