198458448 has 20 divisors (see below), whose sum is σ = 512684448. Its totient is φ = 66152800.

The previous prime is 198458441. The next prime is 198458471. The reversal of 198458448 is 844854891.

It is a self number, because there is not a number n which added to its sum of digits gives 198458448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198458441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2067228 + ... + 2067323.

Almost surely, 2^198458448 is an apocalyptic number.

It is an amenable number.

198458448 is an abundant number, since it is smaller than the sum of its proper divisors (314226000).

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

198458448 is a wasteful number, since it uses less digits than its factorization.

198458448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4134562 (or 4134556 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 51.

The square root of 198458448 is about 14087.5281011255. The cubic root of 198458448 is about 583.2971622379.

The spelling of 198458448 in words is "one hundred ninety-eight million, four hundred fifty-eight thousand, four hundred forty-eight".