1946340709 has 2 divisors, whose sum is σ = 1946340710. Its totient is φ = 1946340708.

The previous prime is 1946340703. The next prime is 1946340743. The reversal of 1946340709 is 9070436491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1864944225 + 81396484 = 43185^2 + 9022^2 .

It is an emirp because it is prime and its reverse (9070436491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1946340709 - 2¹¹ = 1946338661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1946340703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 973170354 + 973170355.

It is an arithmetic number, because the mean of its divisors is an integer number (973170355).

Almost surely, 2^1946340709 is an apocalyptic number.

It is an amenable number.

1946340709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1946340709 is an equidigital number, since it uses as much as digits as its factorization.

1946340709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 1946340709 is about 44117.3515637555. The cubic root of 1946340709 is about 1248.5510055678.

The spelling of 1946340709 in words is "one billion, nine hundred forty-six million, three hundred forty thousand, seven hundred nine".