18030912 has 28 divisors (see below), whose sum is σ = 47707296. Its totient is φ = 6010240.

The previous prime is 18030911. The next prime is 18030923. The reversal of 18030912 is 21903081.

It is a super-2 number, since 2×18030912² = 650227575103488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18030911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46764 + ... + 47147.

It is an arithmetic number, because the mean of its divisors is an integer number (1703832).

Almost surely, 2^18030912 is an apocalyptic number.

18030912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18030912 is an abundant number, since it is smaller than the sum of its proper divisors (29676384).

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

18030912 is an equidigital number, since it uses as much as digits as its factorization.

18030912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93926 (or 93916 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 18030912 is about 4246.2821385301. The cubic root of 18030912 is about 262.2240765081.

Adding to 18030912 its reverse (21903081), we get a palindrome (39933993).

The spelling of 18030912 in words is "eighteen million, thirty thousand, nine hundred twelve".