288039 has 4 divisors (see below), whose sum is σ = 384056. Its totient is φ = 192024.

The previous prime is 288023. The next prime is 288049. The reversal of 288039 is 930882.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 288039 - 2⁴ = 288023 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 287997 and 288015.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 288039.

It is not an unprimeable number, because it can be changed into a prime (288049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48004 + ... + 48009.

It is an arithmetic number, because the mean of its divisors is an integer number (96014).

2²⁸⁸⁰³⁹ is an apocalyptic number.

288039 is a deficient number, since it is larger than the sum of its proper divisors (96017).

288039 is an equidigital number, since it uses as much as digits as its factorization.

288039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96016.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 288039 is about 536.6926494745. The cubic root of 288039 is about 66.0415257499.

The spelling of 288039 in words is "two hundred eighty-eight thousand, thirty-nine".