1968240843 has 16 divisors (see below), whose sum is σ = 2959436160. Its totient is φ = 1292574888.

The previous prime is 1968240829. The next prime is 1968240851. The reversal of 1968240843 is 3480428691.

It is a happy number.

It is not a de Polignac number, because 1968240843 - 2⁶ = 1968240779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1968240803) 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 in 15 ways as a sum of consecutive naturals, for example, 542205 + ... + 545822.

It is an arithmetic number, because the mean of its divisors is an integer number (184964760).

Almost surely, 2^1968240843 is an apocalyptic number.

1968240843 is a deficient number, since it is larger than the sum of its proper divisors (991195317).

1968240843 is a wasteful number, since it uses less digits than its factorization.

1968240843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088103 (or 1088097 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 1968240843 is about 44364.8604528404. The cubic root of 1968240843 is about 1253.2164297384.

The spelling of 1968240843 in words is "one billion, nine hundred sixty-eight million, two hundred forty thousand, eight hundred forty-three".