289306234 has 16 divisors (see below), whose sum is σ = 498124800. Its totient is φ = 123445584.

The previous prime is 289306231. The next prime is 289306243. The reversal of 289306234 is 432603982.

It is a junction number, because it is equal to n+sod(n) for n = 289306193 and 289306202.

It is not an unprimeable number, because it can be changed into a prime (289306231) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 41914 + ... + 48325.

It is an arithmetic number, because the mean of its divisors is an integer number (31132800).

Almost surely, 2^289306234 is an apocalyptic number.

289306234 is a deficient number, since it is larger than the sum of its proper divisors (208818566).

289306234 is a wasteful number, since it uses less digits than its factorization.

289306234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90477.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 289306234 is about 17009.0044976183. The cubic root of 289306234 is about 661.3823445235.

The spelling of 289306234 in words is "two hundred eighty-nine million, three hundred six thousand, two hundred thirty-four".