199804528 has 80 divisors (see below), whose sum is σ = 486825984. Its totient is φ = 77172480.

The previous prime is 199804469. The next prime is 199804529. The reversal of 199804528 is 825408991.

199804528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199804529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155826 + ... + 157102.

Almost surely, 2^199804528 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 199804528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243412992).

199804528 is an abundant number, since it is smaller than the sum of its proper divisors (287021456).

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

199804528 is a wasteful number, since it uses less digits than its factorization.

199804528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430 (or 1424 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 199804528 is about 14135.2229554401. Note that the first 3 decimals coincide. The cubic root of 199804528 is about 584.6129643411.

The spelling of 199804528 in words is "one hundred ninety-nine million, eight hundred four thousand, five hundred twenty-eight".