289931241 has 32 divisors (see below), whose sum is σ = 430848000. Its totient is φ = 172646208.

The previous prime is 289931237. The next prime is 289931267. The reversal of 289931241 is 142139982.

It is not a de Polignac number, because 289931241 - 2² = 289931237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 289931241.

It is not an unprimeable number, because it can be changed into a prime (289931441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69040 + ... + 73118.

It is an arithmetic number, because the mean of its divisors is an integer number (13464000).

Almost surely, 2^289931241 is an apocalyptic number.

It is an amenable number.

289931241 is a deficient number, since it is larger than the sum of its proper divisors (140916759).

289931241 is a wasteful number, since it uses less digits than its factorization.

289931241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4173.

The product of its digits is 31104, while the sum is 39.

The square root of 289931241 is about 17027.3674124922. The cubic root of 289931241 is about 661.8582776669.

The spelling of 289931241 in words is "two hundred eighty-nine million, nine hundred thirty-one thousand, two hundred forty-one".