198329904 has 160 divisors (see below), whose sum is σ = 609286400. Its totient is φ = 61585920.

The previous prime is 198329881. The next prime is 198329917. The reversal of 198329904 is 409923891.

It is a self number, because there is not a number n which added to its sum of digits gives 198329904.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 599019 + ... + 599349.

It is an arithmetic number, because the mean of its divisors is an integer number (3808040).

Almost surely, 2^198329904 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 198329904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304643200).

198329904 is an abundant number, since it is smaller than the sum of its proper divisors (410956496).

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

198329904 is a wasteful number, since it uses less digits than its factorization.

198329904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 198329904 is about 14082.9650287147. The cubic root of 198329904 is about 583.1711987674.

The spelling of 198329904 in words is "one hundred ninety-eight million, three hundred twenty-nine thousand, nine hundred four".