198027776 has 40 divisors (see below), whose sum is σ = 409343220. Its totient is φ = 95592448.

The previous prime is 198027751. The next prime is 198027803. The reversal of 198027776 is 677720891.

It can be written as a sum of positive squares in 2 ways, for example, as 196000000 + 2027776 = 14000^2 + 1424^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 198027776.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8180 + ... + 21516.

Almost surely, 2^198027776 is an apocalyptic number.

198027776 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 198027776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204671610).

198027776 is an abundant number, since it is smaller than the sum of its proper divisors (211315444).

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

198027776 is an equidigital number, since it uses as much as digits as its factorization.

198027776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13384 (or 13368 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 47.

The square root of 198027776 is about 14072.2342220416. The cubic root of 198027776 is about 582.8749215573.

The spelling of 198027776 in words is "one hundred ninety-eight million, twenty-seven thousand, seven hundred seventy-six".