198867456 has 120 divisors (see below), whose sum is σ = 580900320. Its totient is φ = 65488896.

The previous prime is 198867443. The next prime is 198867463. The reversal of 198867456 is 654768891.

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 11 ways as a sum of consecutive naturals, for example, 474415 + ... + 474833.

It is an arithmetic number, because the mean of its divisors is an integer number (4840836).

Almost surely, 2^198867456 is an apocalyptic number.

198867456 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 198867456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290450160).

198867456 is an abundant number, since it is smaller than the sum of its proper divisors (382032864).

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

198867456 is a wasteful number, since it uses less digits than its factorization.

198867456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546 (or 527 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 198867456 is about 14102.0372996245. The cubic root of 198867456 is about 583.6975978651.

The spelling of 198867456 in words is "one hundred ninety-eight million, eight hundred sixty-seven thousand, four hundred fifty-six".