1992718834 has 8 divisors (see below), whose sum is σ = 2989324800. Its totient is φ = 996277236.

The previous prime is 1992718813. The next prime is 1992718867. The reversal of 1992718834 is 4388172991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4134 + ... + 63265.

It is an arithmetic number, because the mean of its divisors is an integer number (373665600).

Almost surely, 2^1992718834 is an apocalyptic number.

1992718834 is a deficient number, since it is larger than the sum of its proper divisors (996605966).

1992718834 is a wasteful number, since it uses less digits than its factorization.

1992718834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82184.

The product of its digits is 870912, while the sum is 52.

The square root of 1992718834 is about 44639.8794129196. The cubic root of 1992718834 is about 1258.3902416592.

The spelling of 1992718834 in words is "one billion, nine hundred ninety-two million, seven hundred eighteen thousand, eight hundred thirty-four".