1920680992 has 24 divisors (see below), whose sum is σ = 3852690156. Its totient is φ = 942220032.

The previous prime is 1920680969. The next prime is 1920681013. The reversal of 1920680992 is 2990860291.

It can be written as a sum of positive squares in 2 ways, for example, as 1870043536 + 50637456 = 43244^2 + 7116^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564543 + ... + 567934.

Almost surely, 2^1920680992 is an apocalyptic number.

It is an amenable number.

1920680992 is an abundant number, since it is smaller than the sum of its proper divisors (1932009164).

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

1920680992 is a wasteful number, since it uses less digits than its factorization.

1920680992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132540 (or 1132532 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 1920680992 is about 43825.5746339965. The cubic root of 1920680992 is about 1243.0399294897.

The spelling of 1920680992 in words is "one billion, nine hundred twenty million, six hundred eighty thousand, nine hundred ninety-two".