198358272 has 216 divisors, whose sum is σ = 669614400. Its totient is φ = 56448000.

The previous prime is 198358267. The next prime is 198358291. The reversal of 198358272 is 272853891.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 790147 + ... + 790397.

Almost surely, 2^198358272 is an apocalyptic number.

198358272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198358272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334807200).

198358272 is an abundant number, since it is smaller than the sum of its proper divisors (471256128).

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

198358272 is an equidigital number, since it uses as much as digits as its factorization.

198358272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 263 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 198358272 is about 14083.9721669705. The cubic root of 198358272 is about 583.1990019571.

The spelling of 198358272 in words is "one hundred ninety-eight million, three hundred fifty-eight thousand, two hundred seventy-two".