2004240409 has 2 divisors, whose sum is σ = 2004240410. Its totient is φ = 2004240408.

The previous prime is 2004240379. The next prime is 2004240439. The reversal of 2004240409 is 9040424002.

It is a balanced prime because it is at equal distance from previous prime (2004240379) and next prime (2004240439).

It can be written as a sum of positive squares in only one way, i.e., 1627880409 + 376360000 = 40347^2 + 19400^2 .

It is a cyclic number.

It is not a de Polignac number, because 2004240409 - 2¹¹ = 2004238361 is a prime.

It is not a weakly prime, because it can be changed into another prime (2004240439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002120204 + 1002120205.

It is an arithmetic number, because the mean of its divisors is an integer number (1002120205).

Almost surely, 2^2004240409 is an apocalyptic number.

It is an amenable number.

2004240409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004240409 is an equidigital number, since it uses as much as digits as its factorization.

2004240409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 2004240409 is about 44768.7436611750. The cubic root of 2004240409 is about 1260.8108514303.

The spelling of 2004240409 in words is "two billion, four million, two hundred forty thousand, four hundred nine".