198398052 has 48 divisors (see below), whose sum is σ = 515289600. Its totient is φ = 66013920.

The previous prime is 198398029. The next prime is 198398111. The reversal of 198398052 is 250893891.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 198397989 and 198398007.

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 15 ways as a sum of consecutive naturals, for example, 75277 + ... + 77867.

It is an arithmetic number, because the mean of its divisors is an integer number (10735200).

Almost surely, 2^198398052 is an apocalyptic number.

198398052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198398052 is an abundant number, since it is smaller than the sum of its proper divisors (316891548).

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

198398052 is a wasteful number, since it uses less digits than its factorization.

198398052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313 (or 3305 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 198398052 is about 14085.3843398042. The cubic root of 198398052 is about 583.2379854681.

The spelling of 198398052 in words is "one hundred ninety-eight million, three hundred ninety-eight thousand, fifty-two".