2544009 has 32 divisors (see below), whose sum is σ = 3932544. Its totient is φ = 1451520.

The previous prime is 2543971. The next prime is 2544011. The reversal of 2544009 is 9004452.

It is not a de Polignac number, because 2544009 - 2⁸ = 2543753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2544009.

It is not an unprimeable number, because it can be changed into a prime (2544029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59142 + ... + 59184.

It is an arithmetic number, because the mean of its divisors is an integer number (122892).

2^2544009 is an apocalyptic number.

It is an amenable number.

2544009 is a deficient number, since it is larger than the sum of its proper divisors (1388535).

2544009 is a wasteful number, since it uses less digits than its factorization.

2544009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2544009 is about 1594.9949843181. The cubic root of 2544009 is about 136.5126449127.

The spelling of 2544009 in words is "two million, five hundred forty-four thousand, nine".