198144346 has 4 divisors (see below), whose sum is σ = 297216522. Its totient is φ = 99072172.

The previous prime is 198144341. The next prime is 198144383. The reversal of 198144346 is 643441891.

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., 179265321 + 18879025 = 13389^2 + 4345^2 .

It is a super-3 number, since 3×198144346³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 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 a junction number, because it is equal to n+sod(n) for n = 198144299 and 198144308.

It is not an unprimeable number, because it can be changed into a prime (198144341) by changing a digit.

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 as a sum of consecutive naturals, namely, 49536085 + ... + 49536088.

Almost surely, 2^198144346 is an apocalyptic number.

198144346 is a deficient number, since it is larger than the sum of its proper divisors (99072176).

198144346 is an equidigital number, since it uses as much as digits as its factorization.

198144346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99072175.

The product of its digits is 82944, while the sum is 40.

The square root of 198144346 is about 14076.3754567715. The cubic root of 198144346 is about 582.9892698289.

The spelling of 198144346 in words is "one hundred ninety-eight million, one hundred forty-four thousand, three hundred forty-six".