199520288 has 54 divisors (see below), whose sum is σ = 433671903. Its totient is φ = 90291520.

The previous prime is 199520281. The next prime is 199520291. The reversal of 199520288 is 882025991.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

199520288 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 99760144 + 99760144 = 9988^2 + 9988^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=9988.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199520281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 878831 + ... + 879057.

Almost surely, 2^199520288 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 199520288

199520288 is an abundant number, since it is smaller than the sum of its proper divisors (234151615).

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

199520288 is an equidigital number, since it uses as much as digits as its factorization.

199520288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 199520288 is about 14125.1650609825. The cubic root of 199520288 is about 584.3356111860.

The spelling of 199520288 in words is "one hundred ninety-nine million, five hundred twenty thousand, two hundred eighty-eight".