2440361809 has 2 divisors, whose sum is σ = 2440361810. Its totient is φ = 2440361808.

The previous prime is 2440361761. The next prime is 2440361827. The reversal of 2440361809 is 9081630442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2437890625 + 2471184 = 49375^2 + 1572^2 .

It is a cyclic number.

It is not a de Polignac number, because 2440361809 - 2⁷ = 2440361681 is a prime.

It is not a weakly prime, because it can be changed into another prime (2440361879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1220180904 + 1220180905.

It is an arithmetic number, because the mean of its divisors is an integer number (1220180905).

Almost surely, 2^2440361809 is an apocalyptic number.

It is an amenable number.

2440361809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2440361809 is an equidigital number, since it uses as much as digits as its factorization.

2440361809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 2440361809 is about 49400.0183097132. The cubic root of 2440361809 is about 1346.3296385285.

The spelling of 2440361809 in words is "two billion, four hundred forty million, three hundred sixty-one thousand, eight hundred nine".