198378576 has 240 divisors, whose sum is σ = 658082880. Its totient is φ = 55111680.

The previous prime is 198378569. The next prime is 198378577. The reversal of 198378576 is 675873891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198378577) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1427115 + ... + 1427253.

It is an arithmetic number, because the mean of its divisors is an integer number (2742012).

Almost surely, 2^198378576 is an apocalyptic number.

198378576 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 198378576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329041440).

198378576 is an abundant number, since it is smaller than the sum of its proper divisors (459704304).

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

198378576 is a wasteful number, since it uses less digits than its factorization.

198378576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 225 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The square root of 198378576 is about 14084.6929678996. The cubic root of 198378576 is about 583.2189000745.

The spelling of 198378576 in words is "one hundred ninety-eight million, three hundred seventy-eight thousand, five hundred seventy-six".