18382023 has 12 divisors (see below), whose sum is σ = 28965768. Its totient is φ = 11140560.

The previous prime is 18382019. The next prime is 18382033. The reversal of 18382023 is 32028381.

It is not a de Polignac number, because 18382023 - 2² = 18382019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18382003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92740 + ... + 92937.

It is an arithmetic number, because the mean of its divisors is an integer number (2413814).

Almost surely, 2^18382023 is an apocalyptic number.

18382023 is a deficient number, since it is larger than the sum of its proper divisors (10583745).

18382023 is a wasteful number, since it uses less digits than its factorization.

18382023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185694 (or 185691 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 18382023 is about 4287.4261509675. The cubic root of 18382023 is about 263.9152189884.

The spelling of 18382023 in words is "eighteen million, three hundred eighty-two thousand, twenty-three".