198858496 has 36 divisors (see below), whose sum is σ = 400922424. Its totient is φ = 98432000.

The previous prime is 198858467. The next prime is 198858547. The reversal of 198858496 is 694858891.

It is a self number, because there is not a number n which added to its sum of digits gives 198858496.

It is a congruent number.

It is an unprimeable number.

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, 22011 + ... + 29701.

It is an arithmetic number, because the mean of its divisors is an integer number (11136734).

Almost surely, 2^198858496 is an apocalyptic number.

198858496 is a gapful number since it is divisible by the number (16) 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 198858496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200461212).

198858496 is an abundant number, since it is smaller than the sum of its proper divisors (202063928).

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

198858496 is an equidigital number, since it uses as much as digits as its factorization.

198858496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7808 (or 7794 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 58.

The square root of 198858496 is about 14101.7196114516. The cubic root of 198858496 is about 583.6888315421.

The spelling of 198858496 in words is "one hundred ninety-eight million, eight hundred fifty-eight thousand, four hundred ninety-six".