2340890509 has 2 divisors, whose sum is σ = 2340890510. Its totient is φ = 2340890508.

The previous prime is 2340890501. The next prime is 2340890551. The reversal of 2340890509 is 9050980432.

It is a happy number.

2340890509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2304288009 + 36602500 = 48003^2 + 6050^2 .

It is a cyclic number.

It is not a de Polignac number, because 2340890509 - 2³ = 2340890501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2340890501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1170445254 + 1170445255.

It is an arithmetic number, because the mean of its divisors is an integer number (1170445255).

Almost surely, 2^2340890509 is an apocalyptic number.

It is an amenable number.

2340890509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2340890509 is an equidigital number, since it uses as much as digits as its factorization.

2340890509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 2340890509 is about 48382.7501181981. The cubic root of 2340890509 is about 1327.7827849492.

The spelling of 2340890509 in words is "two billion, three hundred forty million, eight hundred ninety thousand, five hundred nine".