1940795317 has 2 divisors, whose sum is σ = 1940795318. Its totient is φ = 1940795316.

The previous prime is 1940795281. The next prime is 1940795323. The reversal of 1940795317 is 7135970491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1940754916 + 40401 = 44054^2 + 201^2 .

It is a cyclic number.

It is not a de Polignac number, because 1940795317 - 2¹¹ = 1940793269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1940795347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970397658 + 970397659.

It is an arithmetic number, because the mean of its divisors is an integer number (970397659).

Almost surely, 2^1940795317 is an apocalyptic number.

It is an amenable number.

1940795317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940795317 is an equidigital number, since it uses as much as digits as its factorization.

1940795317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 238140, while the sum is 46.

The square root of 1940795317 is about 44054.4585371333. The cubic root of 1940795317 is about 1247.3641132143.

It can be divided in two parts, 194079 and 5317, that added together give a triangular number (199396 = T₆₃₁).

The spelling of 1940795317 in words is "one billion, nine hundred forty million, seven hundred ninety-five thousand, three hundred seventeen".