2420342209 has 2 divisors, whose sum is σ = 2420342210. Its totient is φ = 2420342208.

The previous prime is 2420342203. The next prime is 2420342219. The reversal of 2420342209 is 9022430242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2184627600 + 235714609 = 46740^2 + 15353^2 .

It is a cyclic number.

It is not a de Polignac number, because 2420342209 - 2²³ = 2411953601 is a prime.

It is not a weakly prime, because it can be changed into another prime (2420342203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210171104 + 1210171105.

It is an arithmetic number, because the mean of its divisors is an integer number (1210171105).

Almost surely, 2^2420342209 is an apocalyptic number.

It is an amenable number.

2420342209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420342209 is an equidigital number, since it uses as much as digits as its factorization.

2420342209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 2420342209 is about 49196.9735756174. The cubic root of 2420342209 is about 1342.6379698384.

The spelling of 2420342209 in words is "two billion, four hundred twenty million, three hundred forty-two thousand, two hundred nine".