289440229 has 8 divisors (see below), whose sum is σ = 312308192. Its totient is φ = 266658480.

The previous prime is 289440191. The next prime is 289440251. The reversal of 289440229 is 922044982.

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

It is a cyclic number.

It is not a de Polignac number, because 289440229 - 2⁷ = 289440101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 289440191 and 289440200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289440259) 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, 14487 + ... + 28084.

It is an arithmetic number, because the mean of its divisors is an integer number (39038524).

Almost surely, 2^289440229 is an apocalyptic number.

It is an amenable number.

289440229 is a deficient number, since it is larger than the sum of its proper divisors (22867963).

289440229 is a wasteful number, since it uses less digits than its factorization.

289440229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43107.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 289440229 is about 17012.9429846808. The cubic root of 289440229 is about 661.4844373215.

The spelling of 289440229 in words is "two hundred eighty-nine million, four hundred forty thousand, two hundred twenty-nine".