289789472 has 48 divisors (see below), whose sum is σ = 661792320. Its totient is φ = 122335488.

The previous prime is 289789469. The next prime is 289789477. The reversal of 289789472 is 274987982.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (289789477) 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 7 ways as a sum of consecutive naturals, for example, 5354 + ... + 24662.

It is an arithmetic number, because the mean of its divisors is an integer number (13787340).

Almost surely, 2^289789472 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 289789472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330896160).

289789472 is an abundant number, since it is smaller than the sum of its proper divisors (372002848).

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

289789472 is a wasteful number, since it uses less digits than its factorization.

289789472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19393 (or 19385 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 56.

The square root of 289789472 is about 17023.2039287556. The cubic root of 289789472 is about 661.7503827931.

The spelling of 289789472 in words is "two hundred eighty-nine million, seven hundred eighty-nine thousand, four hundred seventy-two".