289443972 has 48 divisors (see below), whose sum is σ = 716627520. Its totient is φ = 90611712.

The previous prime is 289443949. The next prime is 289443977. The reversal of 289443972 is 279344982.

It is not an unprimeable number, because it can be changed into a prime (289443977) 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 in 15 ways as a sum of consecutive naturals, for example, 116479 + ... + 118937.

It is an arithmetic number, because the mean of its divisors is an integer number (14929740).

Almost surely, 2^289443972 is an apocalyptic number.

It is an amenable number.

289443972 is an abundant number, since it is smaller than the sum of its proper divisors (427183548).

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

289443972 is a wasteful number, since it uses less digits than its factorization.

289443972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060 (or 3058 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 289443972 is about 17013.0529888083. The cubic root of 289443972 is about 661.4872887168.

The spelling of 289443972 in words is "two hundred eighty-nine million, four hundred forty-three thousand, nine hundred seventy-two".