289540742 has 8 divisors (see below), whose sum is σ = 435021456. Its totient is φ = 144533592.

The previous prime is 289540739. The next prime is 289540751. The reversal of 289540742 is 247045982.

289540742 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 289540742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116858 + ... + 119309.

It is an arithmetic number, because the mean of its divisors is an integer number (54377682).

Almost surely, 2^289540742 is an apocalyptic number.

289540742 is a deficient number, since it is larger than the sum of its proper divisors (145480714).

289540742 is a wasteful number, since it uses less digits than its factorization.

289540742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236782.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 289540742 is about 17015.8967439274. The cubic root of 289540742 is about 661.5609990013.

The spelling of 289540742 in words is "two hundred eighty-nine million, five hundred forty thousand, seven hundred forty-two".