2402918909 has 2 divisors, whose sum is σ = 2402918910. Its totient is φ = 2402918908.

The previous prime is 2402918891. The next prime is 2402918911. The reversal of 2402918909 is 9098192042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1849258009 + 553660900 = 43003^2 + 23530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2402918909 is a prime.

Together with 2402918911, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2402918909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2402918009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1201459454 + 1201459455.

It is an arithmetic number, because the mean of its divisors is an integer number (1201459455).

Almost surely, 2^2402918909 is an apocalyptic number.

It is an amenable number.

2402918909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2402918909 is an equidigital number, since it uses as much as digits as its factorization.

2402918909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 2402918909 is about 49019.5767933588. The cubic root of 2402918909 is about 1339.4084618956.

The spelling of 2402918909 in words is "two billion, four hundred two million, nine hundred eighteen thousand, nine hundred nine".