2590409 has 4 divisors (see below), whose sum is σ = 2742804. Its totient is φ = 2438016.

The previous prime is 2590397. The next prime is 2590411. The reversal of 2590409 is 9040952.

2590409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1729225 + 861184 = 1315^2 + 928^2 .

It is a cyclic number.

It is not a de Polignac number, because 2590409 - 2¹² = 2586313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2590429) 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 3 ways as a sum of consecutive naturals, for example, 76172 + ... + 76205.

It is an arithmetic number, because the mean of its divisors is an integer number (685701).

2^2590409 is an apocalyptic number.

It is an amenable number.

2590409 is a deficient number, since it is larger than the sum of its proper divisors (152395).

2590409 is a wasteful number, since it uses less digits than its factorization.

2590409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152394.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 2590409 is about 1609.4747590441. The cubic root of 2590409 is about 137.3375977928.

The spelling of 2590409 in words is "two million, five hundred ninety thousand, four hundred nine".