1438108843 has 2 divisors, whose sum is σ = 1438108844. Its totient is φ = 1438108842.

The previous prime is 1438108807. The next prime is 1438108849. The reversal of 1438108843 is 3488018341.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1438108843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1438108796 and 1438108805.

It is not a weakly prime, because it can be changed into another prime (1438108849) 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 as a sum of consecutive naturals, namely, 719054421 + 719054422.

It is an arithmetic number, because the mean of its divisors is an integer number (719054422).

Almost surely, 2^1438108843 is an apocalyptic number.

1438108843 is a deficient number, since it is larger than the sum of its proper divisors (1).

1438108843 is an equidigital number, since it uses as much as digits as its factorization.

1438108843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 1438108843 is about 37922.4055539730. The cubic root of 1438108843 is about 1128.7486717366.

The spelling of 1438108843 in words is "one billion, four hundred thirty-eight million, one hundred eight thousand, eight hundred forty-three".