198052512 has 144 divisors (see below), whose sum is σ = 614319552. Its totient is φ = 55695360.

The previous prime is 198052511. The next prime is 198052529. The reversal of 198052512 is 215250891.

It is not an unprimeable number, because it can be changed into a prime (198052511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 333688 + ... + 334280.

It is an arithmetic number, because the mean of its divisors is an integer number (4266108).

Almost surely, 2^198052512 is an apocalyptic number.

198052512 is a gapful number since it is divisible by the number (12) 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 198052512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307159776).

198052512 is an abundant number, since it is smaller than the sum of its proper divisors (416267040).

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

198052512 is a wasteful number, since it uses less digits than its factorization.

198052512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 198052512 is about 14073.1130884392. The cubic root of 198052512 is about 582.8991898595.

The spelling of 198052512 in words is "one hundred ninety-eight million, fifty-two thousand, five hundred twelve".