198288896 has 80 divisors (see below), whose sum is σ = 440888448. Its totient is φ = 88565760.

The previous prime is 198288859. The next prime is 198288907. The reversal of 198288896 is 698882891.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6396401 + ... + 6396431.

Almost surely, 2^198288896 is an apocalyptic number.

198288896 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 198288896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220444224).

198288896 is an abundant number, since it is smaller than the sum of its proper divisors (242599552).

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

198288896 is an frugal number, since it uses more digits than its factorization.

198288896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 46 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 59.

The square root of 198288896 is about 14081.5090100458. The cubic root of 198288896 is about 583.1310025547.

The spelling of 198288896 in words is "one hundred ninety-eight million, two hundred eighty-eight thousand, eight hundred ninety-six".