2490509 has 16 divisors (see below), whose sum is σ = 3072000. Its totient is φ = 1972080.

The previous prime is 2490497. The next prime is 2490529. The reversal of 2490509 is 9050942.

It is a cyclic number.

It is not a de Polignac number, because 2490509 - 2⁴ = 2490493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4742 + ... + 5240.

It is an arithmetic number, because the mean of its divisors is an integer number (192000).

2^2490509 is an apocalyptic number.

It is an amenable number.

2490509 is a deficient number, since it is larger than the sum of its proper divisors (581491).

2490509 is a wasteful number, since it uses less digits than its factorization.

2490509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560.

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

The square root of 2490509 is about 1578.1346583863. The cubic root of 2490509 is about 135.5489127753.

The spelling of 2490509 in words is "two million, four hundred ninety thousand, five hundred nine".