1920680343 has 40 divisors (see below), whose sum is σ = 3043171296. Its totient is φ = 1204632000.

The previous prime is 1920680329. The next prime is 1920680351. The reversal of 1920680343 is 3430860291.

It is not a de Polignac number, because 1920680343 - 2⁸ = 1920680087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1920680298 and 1920680307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920680393) 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 39 ways as a sum of consecutive naturals, for example, 105193 + ... + 122093.

Almost surely, 2^1920680343 is an apocalyptic number.

1920680343 is a deficient number, since it is larger than the sum of its proper divisors (1122490953).

1920680343 is a wasteful number, since it uses less digits than its factorization.

1920680343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16997 (or 16988 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1920680343 is about 43825.5672296435. The cubic root of 1920680343 is about 1243.0397894816.

The spelling of 1920680343 in words is "one billion, nine hundred twenty million, six hundred eighty thousand, three hundred forty-three".