198188032 has 88 divisors (see below), whose sum is σ = 464030336. Its totient is φ = 82833408.

The previous prime is 198187999. The next prime is 198188063. The reversal of 198188032 is 230881891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307903 + ... + 308545.

It is an arithmetic number, because the mean of its divisors is an integer number (5273072).

Almost surely, 2^198188032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198188032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232015168).

198188032 is an abundant number, since it is smaller than the sum of its proper divisors (265842304).

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

198188032 is an equidigital number, since it uses as much as digits as its factorization.

198188032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 198188032 is about 14077.9271201409. The cubic root of 198188032 is about 583.0321116565.

The spelling of 198188032 in words is "one hundred ninety-eight million, one hundred eighty-eight thousand, thirty-two".