289225646 has 8 divisors (see below), whose sum is σ = 435234384. Its totient is φ = 144147520.

The previous prime is 289225631. The next prime is 289225649. The reversal of 289225646 is 646522982.

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

It is a junction number, because it is equal to n+sod(n) for n = 289225597 and 289225606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289225649) 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 3 ways as a sum of consecutive naturals, for example, 231875 + ... + 233118.

It is an arithmetic number, because the mean of its divisors is an integer number (54404298).

Almost surely, 2^289225646 is an apocalyptic number.

289225646 is a deficient number, since it is larger than the sum of its proper divisors (146008738).

289225646 is a wasteful number, since it uses less digits than its factorization.

289225646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465306.

The product of its digits is 414720, while the sum is 44.

The square root of 289225646 is about 17006.6353521207. The cubic root of 289225646 is about 661.3209281374.

The spelling of 289225646 in words is "two hundred eighty-nine million, two hundred twenty-five thousand, six hundred forty-six".