289745334 has 48 divisors (see below), whose sum is σ = 637876512. Its totient is φ = 95042304.

The previous prime is 289745333. The next prime is 289745369. The reversal of 289745334 is 433547982.

289745334 is a `hidden beast` number, since 28 + 97 + 4 + 533 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 289745334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289745333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 339252 + ... + 340104.

It is an arithmetic number, because the mean of its divisors is an integer number (13289094).

Almost surely, 2^289745334 is an apocalyptic number.

289745334 is an abundant number, since it is smaller than the sum of its proper divisors (348131178).

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

289745334 is a wasteful number, since it uses less digits than its factorization.

289745334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141 (or 1138 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 289745334 is about 17021.9074724309. The cubic root of 289745334 is about 661.7167838943.

The spelling of 289745334 in words is "two hundred eighty-nine million, seven hundred forty-five thousand, three hundred thirty-four".