2440640843 has 2 divisors, whose sum is σ = 2440640844. Its totient is φ = 2440640842.

The previous prime is 2440640803. The next prime is 2440640869. The reversal of 2440640843 is 3480460442.

2440640843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2440640843 - 2¹² = 2440636747 is a prime.

It is not a weakly prime, because it can be changed into another prime (2440640803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1220320421 + 1220320422.

It is an arithmetic number, because the mean of its divisors is an integer number (1220320422).

Almost surely, 2^2440640843 is an apocalyptic number.

2440640843 is a deficient number, since it is larger than the sum of its proper divisors (1).

2440640843 is an equidigital number, since it uses as much as digits as its factorization.

2440640843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 35.

The square root of 2440640843 is about 49402.8424587088. The cubic root of 2440640843 is about 1346.3809502405.

The spelling of 2440640843 in words is "two billion, four hundred forty million, six hundred forty thousand, eight hundred forty-three".