198632448 has 132 divisors (see below), whose sum is σ = 655695040. Its totient is φ = 56733696.

The previous prime is 198632443. The next prime is 198632449. The reversal of 198632448 is 844236891.

It is a happy number.

198632448 is a `hidden beast` number, since 1 + 9 + 8 + 632 + 4 + 4 + 8 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198632443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62973 + ... + 66051.

Almost surely, 2^198632448 is an apocalyptic number.

198632448 is a gapful number since it is divisible by the number (18) 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 198632448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327847520).

198632448 is an abundant number, since it is smaller than the sum of its proper divisors (457062592).

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

198632448 is a wasteful number, since it uses less digits than its factorization.

198632448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3112 (or 3091 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 198632448 is about 14093.7024234230. The cubic root of 198632448 is about 583.4675825616.

The spelling of 198632448 in words is "one hundred ninety-eight million, six hundred thirty-two thousand, four hundred forty-eight".