2440012009 has 2 divisors, whose sum is σ = 2440012010. Its totient is φ = 2440012008.

The previous prime is 2440011943. The next prime is 2440012019. The reversal of 2440012009 is 9002100442.

2440012009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2373638400 + 66373609 = 48720^2 + 8147^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2440012009 is a prime.

It is not a weakly prime, because it can be changed into another prime (2440012019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1220006004 + 1220006005.

It is an arithmetic number, because the mean of its divisors is an integer number (1220006005).

Almost surely, 2^2440012009 is an apocalyptic number.

It is an amenable number.

2440012009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2440012009 is an equidigital number, since it uses as much as digits as its factorization.

2440012009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2440012009 is about 49396.4776983137. The cubic root of 2440012009 is about 1346.2653080934.

The spelling of 2440012009 in words is "two billion, four hundred forty million, twelve thousand, nine".