328090198 has 4 divisors (see below), whose sum is σ = 492135300. Its totient is φ = 164045098.

The previous prime is 328090187. The next prime is 328090199. The reversal of 328090198 is 891090823.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 328090198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328090199) by changing a digit.

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 as a sum of consecutive naturals, namely, 82022548 + ... + 82022551.

It is an arithmetic number, because the mean of its divisors is an integer number (123033825).

Almost surely, 2^328090198 is an apocalyptic number.

328090198 is a deficient number, since it is larger than the sum of its proper divisors (164045102).

328090198 is a wasteful number, since it uses less digits than its factorization.

328090198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164045101.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 328090198 is about 18113.2602807998. The cubic root of 328090198 is about 689.7066581971.

The spelling of 328090198 in words is "three hundred twenty-eight million, ninety thousand, one hundred ninety-eight".