40314020209 has 2 divisors, whose sum is σ = 40314020210. Its totient is φ = 40314020208.

The previous prime is 40314020129. The next prime is 40314020249. The reversal of 40314020209 is 90202041304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38534867809 + 1779152400 = 196303^2 + 42180^2 .

It is a cyclic number.

It is not a de Polignac number, because 40314020209 - 2¹³ = 40314012017 is a prime.

It is not a weakly prime, because it can be changed into another prime (40314020249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20157010104 + 20157010105.

It is an arithmetic number, because the mean of its divisors is an integer number (20157010105).

Almost surely, 2^40314020209 is an apocalyptic number.

It is an amenable number.

40314020209 is a deficient number, since it is larger than the sum of its proper divisors (1).

40314020209 is an equidigital number, since it uses as much as digits as its factorization.

40314020209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 40314020209 in words is "forty billion, three hundred fourteen million, twenty thousand, two hundred nine".