18328814 has 16 divisors (see below), whose sum is σ = 31543296. Its totient is φ = 7824600.

The previous prime is 18328811. The next prime is 18328823. The reversal of 18328814 is 41882381.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18328811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1379 + ... + 6209.

It is an arithmetic number, because the mean of its divisors is an integer number (1971456).

Almost surely, 2^18328814 is an apocalyptic number.

18328814 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18328814 is a deficient number, since it is larger than the sum of its proper divisors (13214482).

18328814 is a wasteful number, since it uses less digits than its factorization.

18328814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111.

The product of its digits is 12288, while the sum is 35.

The square root of 18328814 is about 4281.2164159267. The cubic root of 18328814 is about 263.6603279985.

The spelling of 18328814 in words is "eighteen million, three hundred twenty-eight thousand, eight hundred fourteen".