289065056 has 24 divisors (see below), whose sum is σ = 650396880. Its totient is φ = 123884928.

The previous prime is 289065041. The next prime is 289065109. The reversal of 289065056 is 650560982.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 645011 + ... + 645458.

It is an arithmetic number, because the mean of its divisors is an integer number (27099870).

Almost surely, 2^289065056 is an apocalyptic number.

It is an amenable number.

289065056 is an abundant number, since it is smaller than the sum of its proper divisors (361331824).

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

289065056 is a wasteful number, since it uses less digits than its factorization.

289065056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290486 (or 1290478 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 289065056 is about 17001.9133040961. The cubic root of 289065056 is about 661.1985079311.

The spelling of 289065056 in words is "two hundred eighty-nine million, sixty-five thousand, fifty-six".