18468843 has 4 divisors (see below), whose sum is σ = 24625128. Its totient is φ = 12312560.

The previous prime is 18468841. The next prime is 18468847. The reversal of 18468843 is 34886481.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18468843 - 2¹ = 18468841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18468795 and 18468804.

It is not an unprimeable number, because it can be changed into a prime (18468841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3078138 + ... + 3078143.

It is an arithmetic number, because the mean of its divisors is an integer number (6156282).

Almost surely, 2^18468843 is an apocalyptic number.

18468843 is a deficient number, since it is larger than the sum of its proper divisors (6156285).

18468843 is an equidigital number, since it uses as much as digits as its factorization.

18468843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6156284.

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

The square root of 18468843 is about 4297.5391795771. The cubic root of 18468843 is about 264.3300652411.

The spelling of 18468843 in words is "eighteen million, four hundred sixty-eight thousand, eight hundred forty-three".