289905104 has 10 divisors (see below), whose sum is σ = 561691170. Its totient is φ = 144952544.

The previous prime is 289905089. The next prime is 289905113. The reversal of 289905104 is 401509982.

It can be written as a sum of positive squares in only one way, i.e., 194881600 + 95023504 = 13960^2 + 9748^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9059519 + ... + 9059550.

It is an arithmetic number, because the mean of its divisors is an integer number (56169117).

Almost surely, 2^289905104 is an apocalyptic number.

It is an amenable number.

289905104 is a deficient number, since it is larger than the sum of its proper divisors (271786066).

289905104 is a wasteful number, since it uses less digits than its factorization.

289905104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18119077 (or 18119071 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 289905104 is about 17026.5998954577. The cubic root of 289905104 is about 661.8383884573.

The spelling of 289905104 in words is "two hundred eighty-nine million, nine hundred five thousand, one hundred four".