199964328 has 32 divisors (see below), whose sum is σ = 502070400. Its totient is φ = 66366848.

The previous prime is 199964327. The next prime is 199964363. The reversal of 199964328 is 823469991.

It is not an unprimeable number, because it can be changed into a prime (199964321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12288 + ... + 23471.

It is an arithmetic number, because the mean of its divisors is an integer number (15689700).

Almost surely, 2^199964328 is an apocalyptic number.

It is an amenable number.

199964328 is an abundant number, since it is smaller than the sum of its proper divisors (302106072).

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

199964328 is a wasteful number, since it uses less digits than its factorization.

199964328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36001 (or 35997 counting only the distinct ones).

The product of its digits is 839808, while the sum is 51.

The square root of 199964328 is about 14140.8743718343. The cubic root of 199964328 is about 584.7687770550.

The spelling of 199964328 in words is "one hundred ninety-nine million, nine hundred sixty-four thousand, three hundred twenty-eight".