289972288 has 14 divisors (see below), whose sum is σ = 575413886. Its totient is φ = 144986112.

The previous prime is 289972259. The next prime is 289972289. The reversal of 289972288 is 882279982.

289972288 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., 286557184 + 3415104 = 16928^2 + 1848^2 .

It is not an unprimeable number, because it can be changed into a prime (289972289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2265345 + ... + 2265472.

Almost surely, 2^289972288 is an apocalyptic number.

It is an amenable number.

289972288 is a deficient number, since it is larger than the sum of its proper divisors (285441598).

289972288 is an equidigital number, since it uses as much as digits as its factorization.

289972288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4530829 (or 4530819 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 55.

The square root of 289972288 is about 17028.5726941514. The cubic root of 289972288 is about 661.8895103765.

The spelling of 289972288 in words is "two hundred eighty-nine million, nine hundred seventy-two thousand, two hundred eighty-eight".