18480043 has 2 divisors, whose sum is σ = 18480044. Its totient is φ = 18480042.

The previous prime is 18480041. The next prime is 18480073. The reversal of 18480043 is 34008481.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18480043 - 2¹ = 18480041 is a prime.

Together with 18480041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 18479993 and 18480020.

It is not a weakly prime, because it can be changed into another prime (18480041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9240021 + 9240022.

It is an arithmetic number, because the mean of its divisors is an integer number (9240022).

Almost surely, 2^18480043 is an apocalyptic number.

18480043 is a deficient number, since it is larger than the sum of its proper divisors (1).

18480043 is an equidigital number, since it uses as much as digits as its factorization.

18480043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 18480043 is about 4298.8420533907. The cubic root of 18480043 is about 264.3834867159.

The spelling of 18480043 in words is "eighteen million, four hundred eighty thousand, forty-three".