1992640301 has 2 divisors, whose sum is σ = 1992640302. Its totient is φ = 1992640300.

The previous prime is 1992640271. The next prime is 1992640327. The reversal of 1992640301 is 1030462991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1538992900 + 453647401 = 39230^2 + 21299^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1992640301 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1992640381) 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, 996320150 + 996320151.

It is an arithmetic number, because the mean of its divisors is an integer number (996320151).

Almost surely, 2^1992640301 is an apocalyptic number.

It is an amenable number.

1992640301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1992640301 is an equidigital number, since it uses as much as digits as its factorization.

1992640301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 1992640301 is about 44638.9997759806. Note that the first 3 decimals coincide. The cubic root of 1992640301 is about 1258.3737103993.

The spelling of 1992640301 in words is "one billion, nine hundred ninety-two million, six hundred forty thousand, three hundred one".