2560239 has 18 divisors (see below), whose sum is σ = 4066608. Its totient is φ = 1551000.

The previous prime is 2560223. The next prime is 2560247. The reversal of 2560239 is 9320652.

2560239 is a `hidden beast` number, since 25 + 602 + 39 = 666.

It is not a de Polignac number, because 2560239 - 2⁴ = 2560223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2560219) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 87 + ... + 2264.

2^2560239 is an apocalyptic number.

2560239 is a deficient number, since it is larger than the sum of its proper divisors (1506369).

2560239 is a wasteful number, since it uses less digits than its factorization.

2560239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379 (or 2365 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 2560239 is about 1600.0746857569. The cubic root of 2560239 is about 136.8023327293.

The spelling of 2560239 in words is "two million, five hundred sixty thousand, two hundred thirty-nine".