2499309 has 8 divisors (see below), whose sum is σ = 3702720. Its totient is φ = 1666188.

The previous prime is 2499269. The next prime is 2499311. The reversal of 2499309 is 9039942.

2499309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2499309 - 2⁸ = 2499053 is a prime.

It is an Ulam 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 (2499389) 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 7 ways as a sum of consecutive naturals, for example, 46257 + ... + 46310.

It is an arithmetic number, because the mean of its divisors is an integer number (462840).

2^2499309 is an apocalyptic number.

It is an amenable number.

2499309 is a deficient number, since it is larger than the sum of its proper divisors (1203411).

2499309 is an equidigital number, since it uses as much as digits as its factorization.

2499309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92576 (or 92570 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 2499309 is about 1580.9203015965. The cubic root of 2499309 is about 135.7083752603.

The spelling of 2499309 in words is "two million, four hundred ninety-nine thousand, three hundred nine".