198323528 has 36 divisors (see below), whose sum is σ = 403715385. Its totient is φ = 91294944.

The previous prime is 198323507. The next prime is 198323533. The reversal of 198323528 is 825323891.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 169572484 + 28751044 = 13022^2 + 5362^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=9958.

It is a Duffinian number.

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 8 ways as a sum of consecutive naturals, for example, 517625 + ... + 518007.

Almost surely, 2^198323528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198323528

198323528 is an abundant number, since it is smaller than the sum of its proper divisors (205391857).

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

198323528 is an equidigital number, since it uses as much as digits as its factorization.

198323528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798 (or 398 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 198323528 is about 14082.7386541113. The cubic root of 198323528 is about 583.1649493494.

The spelling of 198323528 in words is "one hundred ninety-eight million, three hundred twenty-three thousand, five hundred twenty-eight".