18324873 has 60 divisors (see below), whose sum is σ = 33657360. Its totient is φ = 9920232.

The previous prime is 18324863. The next prime is 18324881. The reversal of 18324873 is 37842381.

It is not a de Polignac number, because 18324873 - 2⁸ = 18324617 is a prime.

It is a super-2 number, since 2×18324873² = 671601940932258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18324863) 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 59 ways as a sum of consecutive naturals, for example, 964458 + ... + 964476.

It is an arithmetic number, because the mean of its divisors is an integer number (560956).

Almost surely, 2^18324873 is an apocalyptic number.

It is an amenable number.

18324873 is a deficient number, since it is larger than the sum of its proper divisors (15332487).

18324873 is an frugal number, since it uses more digits than its factorization.

18324873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60 (or 29 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 18324873 is about 4280.7561247985. The cubic root of 18324873 is about 263.6414295247.

The spelling of 18324873 in words is "eighteen million, three hundred twenty-four thousand, eight hundred seventy-three".