18882443 has 2 divisors, whose sum is σ = 18882444. Its totient is φ = 18882442.

The previous prime is 18882433. The next prime is 18882497. The reversal of 18882443 is 34428881.

It is a weak prime.

It is an emirp because it is prime and its reverse (34428881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18882443 - 2¹⁰ = 18881419 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 18882397 and 18882406.

It is not a weakly prime, because it can be changed into another prime (18882403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9441221 + 9441222.

It is an arithmetic number, because the mean of its divisors is an integer number (9441222).

Almost surely, 2^18882443 is an apocalyptic number.

18882443 is a deficient number, since it is larger than the sum of its proper divisors (1).

18882443 is an equidigital number, since it uses as much as digits as its factorization.

18882443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49152, while the sum is 38.

The square root of 18882443 is about 4345.3933078606. The cubic root of 18882443 is about 266.2886938555.

The spelling of 18882443 in words is "eighteen million, eight hundred eighty-two thousand, four hundred forty-three".