18328512 has 28 divisors (see below), whose sum is σ = 48494696. Its totient is φ = 6109440.

The previous prime is 18328511. The next prime is 18328523. The reversal of 18328512 is 21582381.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18328512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18328511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47539 + ... + 47922.

Almost surely, 2^18328512 is an apocalyptic number.

18328512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18328512 is an abundant number, since it is smaller than the sum of its proper divisors (30166184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18328512 is an equidigital number, since it uses as much as digits as its factorization.

18328512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95476 (or 95466 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 18328512 is about 4281.1811454317. The cubic root of 18328512 is about 263.6588798987.

The spelling of 18328512 in words is "eighteen million, three hundred twenty-eight thousand, five hundred twelve".