289203216 has 80 divisors (see below), whose sum is σ = 775188480. Its totient is φ = 92810880.

The previous prime is 289203209. The next prime is 289203259. The reversal of 289203216 is 612302982.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 390975 + ... + 391713.

It is an arithmetic number, because the mean of its divisors is an integer number (9689856).

Almost surely, 2^289203216 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 289203216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (387594240).

289203216 is an abundant number, since it is smaller than the sum of its proper divisors (485985264).

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

289203216 is a wasteful number, since it uses less digits than its factorization.

289203216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044 (or 1038 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 289203216 is about 17005.9758908450. The cubic root of 289203216 is about 661.3038321294.

The spelling of 289203216 in words is "two hundred eighty-nine million, two hundred three thousand, two hundred sixteen".