289230712 has 32 divisors (see below), whose sum is σ = 552268800. Its totient is φ = 141976800.

The previous prime is 289230691. The next prime is 289230719. The reversal of 289230712 is 217032982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289230719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152989 + ... + 154867.

It is an arithmetic number, because the mean of its divisors is an integer number (17258400).

Almost surely, 2^289230712 is an apocalyptic number.

It is an amenable number.

289230712 is a deficient number, since it is larger than the sum of its proper divisors (263038088).

289230712 is a wasteful number, since it uses less digits than its factorization.

289230712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227 (or 2223 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 289230712 is about 17006.7842933342. The cubic root of 289230712 is about 661.3247892890.

The spelling of 289230712 in words is "two hundred eighty-nine million, two hundred thirty thousand, seven hundred twelve".