40940140361 has 2 divisors, whose sum is σ = 40940140362. Its totient is φ = 40940140360.

The previous prime is 40940140331. The next prime is 40940140403. The reversal of 40940140361 is 16304104904.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37550688400 + 3389451961 = 193780^2 + 58219^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40940140361 is a prime.

It is not a weakly prime, because it can be changed into another prime (40940140331) 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, 20470070180 + 20470070181.

It is an arithmetic number, because the mean of its divisors is an integer number (20470070181).

Almost surely, 2^40940140361 is an apocalyptic number.

It is an amenable number.

40940140361 is a deficient number, since it is larger than the sum of its proper divisors (1).

40940140361 is an equidigital number, since it uses as much as digits as its factorization.

40940140361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 40940140361 in words is "forty billion, nine hundred forty million, one hundred forty thousand, three hundred sixty-one".