1840680843 has 16 divisors (see below), whose sum is σ = 2478686496. Its totient is φ = 1214922240.

The previous prime is 1840680839. The next prime is 1840680889. The reversal of 1840680843 is 3480860481.

It is not a de Polignac number, because 1840680843 - 2² = 1840680839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1840680795 and 1840680804.

It is not an unprimeable number, because it can be changed into a prime (1840685843) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 376233 + ... + 381093.

It is an arithmetic number, because the mean of its divisors is an integer number (154917906).

Almost surely, 2^1840680843 is an apocalyptic number.

1840680843 is a deficient number, since it is larger than the sum of its proper divisors (638005653).

1840680843 is a wasteful number, since it uses less digits than its factorization.

1840680843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6094.

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 1840680843 is about 42903.1565621925. The cubic root of 1840680843 is about 1225.5362567866.

The spelling of 1840680843 in words is "one billion, eight hundred forty million, six hundred eighty thousand, eight hundred forty-three".