18460223 has 2 divisors, whose sum is σ = 18460224. Its totient is φ = 18460222.

The previous prime is 18460219. The next prime is 18460231. The reversal of 18460223 is 32206481.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18460223 - 2² = 18460219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18460192 and 18460201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18460243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9230111 + 9230112.

It is an arithmetic number, because the mean of its divisors is an integer number (9230112).

Almost surely, 2^18460223 is an apocalyptic number.

18460223 is a deficient number, since it is larger than the sum of its proper divisors (1).

18460223 is an equidigital number, since it uses as much as digits as its factorization.

18460223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 18460223 is about 4296.5361630039. The cubic root of 18460223 is about 264.2889350750.

The spelling of 18460223 in words is "eighteen million, four hundred sixty thousand, two hundred twenty-three".