2560405 has 8 divisors (see below), whose sum is σ = 3118752. Its totient is φ = 2017488.

The previous prime is 2560399. The next prime is 2560417. The reversal of 2560405 is 5040652.

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 2560405 - 2⁵ = 2560373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3487 + ... + 4156.

It is an arithmetic number, because the mean of its divisors is an integer number (389844).

2^2560405 is an apocalyptic number.

It is an amenable number.

2560405 is a deficient number, since it is larger than the sum of its proper divisors (558347).

2560405 is an equidigital number, since it uses as much as digits as its factorization.

2560405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7715.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 2560405 is about 1600.1265574948. The cubic root of 2560405 is about 136.8052893148.

The spelling of 2560405 in words is "two million, five hundred sixty thousand, four hundred five".