198403344 has 50 divisors (see below), whose sum is σ = 574240590. Its totient is φ = 66134016.

The previous prime is 198403343. The next prime is 198403349. The reversal of 198403344 is 443304891.

198403344 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 190108944 + 8294400 = 13788^2 + 2880^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 198403299 and 198403308.

It is not an unprimeable number, because it can be changed into a prime (198403343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 75249 + ... + 77840.

Almost surely, 2^198403344 is an apocalyptic number.

It is an amenable number.

198403344 is an abundant number, since it is smaller than the sum of its proper divisors (375837246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198403344 is a wasteful number, since it uses less digits than its factorization.

198403344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153109 (or 153094 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 198403344 is about 14085.5721928504. The cubic root of 198403344 is about 583.2431711171.

The spelling of 198403344 in words is "one hundred ninety-eight million, four hundred three thousand, three hundred forty-four".