289408245 has 16 divisors (see below), whose sum is σ = 529203840. Its totient is φ = 132300864.

The previous prime is 289408237. The next prime is 289408297. The reversal of 289408245 is 542804982.

It is not a de Polignac number, because 289408245 - 2³ = 289408237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 289408197 and 289408206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1378030 + ... + 1378239.

It is an arithmetic number, because the mean of its divisors is an integer number (33075240).

Almost surely, 2^289408245 is an apocalyptic number.

It is an amenable number.

289408245 is a deficient number, since it is larger than the sum of its proper divisors (239795595).

289408245 is a wasteful number, since it uses less digits than its factorization.

289408245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756284.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 289408245 is about 17012.0029684926. The cubic root of 289408245 is about 661.4600710961.

The spelling of 289408245 in words is "two hundred eighty-nine million, four hundred eight thousand, two hundred forty-five".