289234656 has 36 divisors (see below), whose sum is σ = 822511872. Its totient is φ = 96411456.

The previous prime is 289234643. The next prime is 289234667. The reversal of 289234656 is 656432982.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 501856 + ... + 502431.

It is an arithmetic number, because the mean of its divisors is an integer number (22847552).

Almost surely, 2^289234656 is an apocalyptic number.

It is an amenable number.

289234656 is an abundant number, since it is smaller than the sum of its proper divisors (533277216).

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

289234656 is a wasteful number, since it uses less digits than its factorization.

289234656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004303 (or 1004292 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 289234656 is about 17006.9002466646. The cubic root of 289234656 is about 661.3277952551.

The spelling of 289234656 in words is "two hundred eighty-nine million, two hundred thirty-four thousand, six hundred fifty-six".