2596409 has 4 divisors (see below), whose sum is σ = 2602020. Its totient is φ = 2590800.

The previous prime is 2596387. The next prime is 2596439. The reversal of 2596409 is 9046952.

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

It can be written as a sum of positive squares in 2 ways, for example, as 760384 + 1836025 = 872^2 + 1355^2 .

It is a cyclic number.

It is not a de Polignac number, because 2596409 - 2¹⁶ = 2530873 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2596439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2042 + ... + 3059.

It is an arithmetic number, because the mean of its divisors is an integer number (650505).

2^2596409 is an apocalyptic number.

It is an amenable number.

2596409 is a deficient number, since it is larger than the sum of its proper divisors (5611).

2596409 is an equidigital number, since it uses as much as digits as its factorization.

2596409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 2596409 is about 1611.3376430779. The cubic root of 2596409 is about 137.4435514847.

The spelling of 2596409 in words is "two million, five hundred ninety-six thousand, four hundred nine".