198227456 has 160 divisors (see below), whose sum is σ = 494968320. Its totient is φ = 77414400.

The previous prime is 198227417. The next prime is 198227467. The reversal of 198227456 is 654722891.

It is a happy number.

Its product of digits (241920) is a multiple of the sum of its prime divisors (140).

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 15 ways as a sum of consecutive naturals, for example, 2791901 + ... + 2791971.

It is an arithmetic number, because the mean of its divisors is an integer number (3093552).

Almost surely, 2^198227456 is an apocalyptic number.

198227456 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 198227456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247484160).

198227456 is an abundant number, since it is smaller than the sum of its proper divisors (296740864).

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

198227456 is an equidigital number, since it uses as much as digits as its factorization.

198227456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 140 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 198227456 is about 14079.3272566554. The cubic root of 198227456 is about 583.0707684375.

The spelling of 198227456 in words is "one hundred ninety-eight million, two hundred twenty-seven thousand, four hundred fifty-six".