198438328 has 32 divisors (see below), whose sum is σ = 406800000. Its totient is φ = 89998560.

The previous prime is 198438323. The next prime is 198438343. The reversal of 198438328 is 823834891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198438323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41653 + ... + 46171.

It is an arithmetic number, because the mean of its divisors is an integer number (12712500).

Almost surely, 2^198438328 is an apocalyptic number.

It is an amenable number.

198438328 is an abundant number, since it is smaller than the sum of its proper divisors (208361672).

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

198438328 is a wasteful number, since it uses less digits than its factorization.

198438328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5035 (or 5031 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 198438328 is about 14086.8139761977. The cubic root of 198438328 is about 583.2774497395.

The spelling of 198438328 in words is "one hundred ninety-eight million, four hundred thirty-eight thousand, three hundred twenty-eight".