198367488 has 144 divisors (see below), whose sum is σ = 640180800. Its totient is φ = 60088320.

The previous prime is 198367483. The next prime is 198367489. The reversal of 198367488 is 884763891.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (198367483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74728 + ... + 77336.

It is an arithmetic number, because the mean of its divisors is an integer number (4445700).

Almost surely, 2^198367488 is an apocalyptic number.

198367488 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 198367488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320090400).

198367488 is an abundant number, since it is smaller than the sum of its proper divisors (441813312).

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

198367488 is a wasteful number, since it uses less digits than its factorization.

198367488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2645 (or 2625 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 198367488 is about 14084.2993435953. The cubic root of 198367488 is about 583.2080338950.

The spelling of 198367488 in words is "one hundred ninety-eight million, three hundred sixty-seven thousand, four hundred eighty-eight".