2024509 has 4 divisors (see below), whose sum is σ = 2052316. Its totient is φ = 1996704.

The previous prime is 2024501. The next prime is 2024531. The reversal of 2024509 is 9054202.

It is a happy number.

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 765625 + 1258884 = 875^2 + 1122^2 .

It is a cyclic number.

It is not a de Polignac number, because 2024509 - 2³ = 2024501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2024509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2024501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13794 + ... + 13939.

It is an arithmetic number, because the mean of its divisors is an integer number (513079).

2^2024509 is an apocalyptic number.

It is an amenable number.

2024509 is a deficient number, since it is larger than the sum of its proper divisors (27807).

2024509 is an equidigital number, since it uses as much as digits as its factorization.

2024509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27806.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2024509 is about 1422.8524168022. The cubic root of 2024509 is about 126.5046736492.

The spelling of 2024509 in words is "two million, twenty-four thousand, five hundred nine".