198344356 has 18 divisors (see below), whose sum is σ = 403772838. Its totient is φ = 85004640.

The previous prime is 198344323. The next prime is 198344359. The reversal of 198344356 is 653443891.

It can be written as a sum of positive squares in only one way, i.e., 197964900 + 379456 = 14070^2 + 616^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198344359) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 505785 + ... + 506176.

Almost surely, 2^198344356 is an apocalyptic number.

It is an amenable number.

198344356 is an abundant number, since it is smaller than the sum of its proper divisors (205428482).

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

198344356 is a wasteful number, since it uses less digits than its factorization.

198344356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011979 (or 1011970 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 198344356 is about 14083.4781215437. The cubic root of 198344356 is about 583.1853633576.

The spelling of 198344356 in words is "one hundred ninety-eight million, three hundred forty-four thousand, three hundred fifty-six".