18329312 has 12 divisors (see below), whose sum is σ = 36085896. Its totient is φ = 9164640.

The previous prime is 18329299. The next prime is 18329329. The reversal of 18329312 is 21392381.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 286364 + ... + 286427.

It is an arithmetic number, because the mean of its divisors is an integer number (3007158).

Almost surely, 2^18329312 is an apocalyptic number.

It is an amenable number.

18329312 is a deficient number, since it is larger than the sum of its proper divisors (17756584).

18329312 is an equidigital number, since it uses as much as digits as its factorization.

18329312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572801 (or 572793 counting only the distinct ones).

The product of its digits is 2592, while the sum is 29.

The square root of 18329312 is about 4281.2745765718. The cubic root of 18329312 is about 263.6627158899.

The spelling of 18329312 in words is "eighteen million, three hundred twenty-nine thousand, three hundred twelve".