18328023 has 48 divisors (see below), whose sum is σ = 32535360. Its totient is φ = 9704448.

The previous prime is 18328021. The next prime is 18328031. The reversal of 18328023 is 32082381.

It is not a de Polignac number, because 18328023 - 2¹ = 18328021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18328021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116661 + ... + 116817.

It is an arithmetic number, because the mean of its divisors is an integer number (677820).

Almost surely, 2^18328023 is an apocalyptic number.

18328023 is a deficient number, since it is larger than the sum of its proper divisors (14207337).

18328023 is a wasteful number, since it uses less digits than its factorization.

18328023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 293 counting only the distinct ones).

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

The square root of 18328023 is about 4281.1240346432. The cubic root of 18328023 is about 263.6565350941.

The spelling of 18328023 in words is "eighteen million, three hundred twenty-eight thousand, twenty-three".