2560931 has 8 divisors (see below), whose sum is σ = 2728800. Its totient is φ = 2395008.

The previous prime is 2560927. The next prime is 2560937. The reversal of 2560931 is 1390652.

2560931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2560931 - 2² = 2560927 is a prime.

It is a super-2 number, since 2×2560931² = 13116735173522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2560931.

It is not an unprimeable number, because it can be changed into a prime (2560937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3005 + ... + 3761.

It is an arithmetic number, because the mean of its divisors is an integer number (341100).

2^2560931 is an apocalyptic number.

2560931 is a deficient number, since it is larger than the sum of its proper divisors (167869).

2560931 is a wasteful number, since it uses less digits than its factorization.

2560931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 2560931 is about 1600.2909110534. The cubic root of 2560931 is about 136.8146569285.

The spelling of 2560931 in words is "two million, five hundred sixty thousand, nine hundred thirty-one".