1971680922 has 24 divisors (see below), whose sum is σ = 4273869600. Its totient is φ = 656935560.

The previous prime is 1971680917. The next prime is 1971680923. The reversal of 1971680922 is 2290861791.

It is not an unprimeable number, because it can be changed into a prime (1971680923) 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 11 ways as a sum of consecutive naturals, for example, 19579 + ... + 65777.

It is an arithmetic number, because the mean of its divisors is an integer number (178077900).

Almost surely, 2^1971680922 is an apocalyptic number.

1971680922 is an abundant number, since it is smaller than the sum of its proper divisors (2302188678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1971680922 is a wasteful number, since it uses less digits than its factorization.

1971680922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48578 (or 48575 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 1971680922 is about 44403.6138394163. The cubic root of 1971680922 is about 1253.9461260556.

The spelling of 1971680922 in words is "one billion, nine hundred seventy-one million, six hundred eighty thousand, nine hundred twenty-two".