199962816 has 56 divisors (see below), whose sum is σ = 540349440. Its totient is φ = 65233152.

The previous prime is 199962809. The next prime is 199962817. The reversal of 199962816 is 618269991.

It is not an unprimeable number, because it can be changed into a prime (199962817) 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 in 7 ways as a sum of consecutive naturals, for example, 2056 + ... + 20103.

Almost surely, 2^199962816 is an apocalyptic number.

199962816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199962816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270174720).

199962816 is an abundant number, since it is smaller than the sum of its proper divisors (340386624).

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

199962816 is a wasteful number, since it uses less digits than its factorization.

199962816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22221 (or 22211 counting only the distinct ones).

The product of its digits is 419904, while the sum is 51.

The square root of 199962816 is about 14140.8209096926. The cubic root of 199962816 is about 584.7673031711.

The spelling of 199962816 in words is "one hundred ninety-nine million, nine hundred sixty-two thousand, eight hundred sixteen".