289260224 has 42 divisors (see below), whose sum is σ = 627161052. Its totient is φ = 131276800.

The previous prime is 289260221. The next prime is 289260247. The reversal of 289260224 is 422062982.

It is not an unprimeable number, because it can be changed into a prime (289260221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 450944 + ... + 451584.

It is an arithmetic number, because the mean of its divisors is an integer number (14932406).

Almost surely, 2^289260224 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 289260224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313580526).

289260224 is an abundant number, since it is smaller than the sum of its proper divisors (337900828).

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

289260224 is an frugal number, since it uses more digits than its factorization.

289260224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 289260224 is about 17007.6519249425. The cubic root of 289260224 is about 661.3472815448.

The spelling of 289260224 in words is "two hundred eighty-nine million, two hundred sixty thousand, two hundred twenty-four".