289340368 has 20 divisors (see below), whose sum is σ = 584971488. Its totient is φ = 138380000.

The previous prime is 289340339. The next prime is 289340377. The reversal of 289340368 is 863043982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392758 + ... + 393493.

Almost surely, 2^289340368 is an apocalyptic number.

It is an amenable number.

289340368 is an abundant number, since it is smaller than the sum of its proper divisors (295631120).

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

289340368 is a wasteful number, since it uses less digits than its factorization.

289340368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786282 (or 786276 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 289340368 is about 17010.0078777172. The cubic root of 289340368 is about 661.4083547213.

The spelling of 289340368 in words is "two hundred eighty-nine million, three hundred forty thousand, three hundred sixty-eight".