289407045 has 32 divisors (see below), whose sum is σ = 484630272. Its totient is φ = 147197952.

The previous prime is 289407023. The next prime is 289407047. The reversal of 289407045 is 540704982.

It is not a de Polignac number, because 289407045 - 2¹³ = 289398853 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 289406994 and 289407012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289407047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135909 + ... + 138021.

It is an arithmetic number, because the mean of its divisors is an integer number (15144696).

Almost surely, 2^289407045 is an apocalyptic number.

It is an amenable number.

289407045 is a deficient number, since it is larger than the sum of its proper divisors (195223227).

289407045 is a wasteful number, since it uses less digits than its factorization.

289407045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 289407045 is about 17011.9676992404. The cubic root of 289407045 is about 661.4591568706.

The spelling of 289407045 in words is "two hundred eighty-nine million, four hundred seven thousand, forty-five".