940296209 has 2 divisors, whose sum is σ = 940296210. Its totient is φ = 940296208.

The previous prime is 940296199. The next prime is 940296211. The reversal of 940296209 is 902692049.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 906190609 + 34105600 = 30103^2 + 5840^2 .

It is a cyclic number.

It is not a de Polignac number, because 940296209 - 2⁸ = 940295953 is a prime.

It is a Sophie Germain prime.

Together with 940296211, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (940296229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470148104 + 470148105.

It is an arithmetic number, because the mean of its divisors is an integer number (470148105).

Almost surely, 2^940296209 is an apocalyptic number.

It is an amenable number.

940296209 is a deficient number, since it is larger than the sum of its proper divisors (1).

940296209 is an equidigital number, since it uses as much as digits as its factorization.

940296209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 940296209 is about 30664.2496891739. The cubic root of 940296209 is about 979.6889923144.

The spelling of 940296209 in words is "nine hundred forty million, two hundred ninety-six thousand, two hundred nine".