2540829 has 4 divisors (see below), whose sum is σ = 3387776. Its totient is φ = 1693884.

The previous prime is 2540821. The next prime is 2540831. The reversal of 2540829 is 9280452.

2540829 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2540829 - 2³ = 2540821 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2540796 and 2540805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540821) 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, 423469 + ... + 423474.

It is an arithmetic number, because the mean of its divisors is an integer number (846944).

2^2540829 is an apocalyptic number.

It is an amenable number.

2540829 is a deficient number, since it is larger than the sum of its proper divisors (846947).

2540829 is an equidigital number, since it uses as much as digits as its factorization.

2540829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846946.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2540829 is about 1593.9978042645. The cubic root of 2540829 is about 136.4557411288.

The spelling of 2540829 in words is "two million, five hundred forty thousand, eight hundred twenty-nine".