289253568 has 112 divisors (see below), whose sum is σ = 827755520. Its totient is φ = 88833024.

The previous prime is 289253563. The next prime is 289253581. The reversal of 289253568 is 865352982.

289253568 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289253563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133905 + ... + 136047.

Almost surely, 2^289253568 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 289253568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413877760).

289253568 is an abundant number, since it is smaller than the sum of its proper divisors (538501952).

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

289253568 is a wasteful number, since it uses less digits than its factorization.

289253568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214 (or 2204 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 48.

The square root of 289253568 is about 17007.4562471876. The cubic root of 289253568 is about 661.3422088790.

The spelling of 289253568 in words is "two hundred eighty-nine million, two hundred fifty-three thousand, five hundred sixty-eight".