199965384 has 48 divisors (see below), whose sum is σ = 542400300. Its totient is φ = 66553344.

The previous prime is 199965379. The next prime is 199965397. The reversal of 199965384 is 483569991.

199965384 is a `hidden beast` number, since 19 + 9 + 96 + 538 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 196616484 + 3348900 = 14022^2 + 1830^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 199965384.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56532 + ... + 59964.

Almost surely, 2^199965384 is an apocalyptic number.

It is an amenable number.

199965384 is an abundant number, since it is smaller than the sum of its proper divisors (342434916).

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

199965384 is a wasteful number, since it uses less digits than its factorization.

199965384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4254 (or 4247 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 199965384 is about 14140.9117103530. The cubic root of 199965384 is about 584.7698064298.

The spelling of 199965384 in words is "one hundred ninety-nine million, nine hundred sixty-five thousand, three hundred eighty-four".