1923978922 has 16 divisors (see below), whose sum is σ = 2918916000. Its totient is φ = 951062320.

The previous prime is 1923978913. The next prime is 1923978937. The reversal of 1923978922 is 2298793291.

It is a self number, because there is not a number n which added to its sum of digits gives 1923978922.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 56829 + ... + 84127.

It is an arithmetic number, because the mean of its divisors is an integer number (182432250).

Almost surely, 2^1923978922 is an apocalyptic number.

1923978922 is a deficient number, since it is larger than the sum of its proper divisors (994937078).

1923978922 is a wasteful number, since it uses less digits than its factorization.

1923978922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27701.

The product of its digits is 979776, while the sum is 52.

The square root of 1923978922 is about 43863.1841297460. The cubic root of 1923978922 is about 1243.7509819037.

The spelling of 1923978922 in words is "one billion, nine hundred twenty-three million, nine hundred seventy-eight thousand, nine hundred twenty-two".