18036672 has 28 divisors (see below), whose sum is σ = 47722536. Its totient is φ = 6012160.

The previous prime is 18036661. The next prime is 18036709. The reversal of 18036672 is 27663081.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46779 + ... + 47162.

Almost surely, 2^18036672 is an apocalyptic number.

18036672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18036672 is an abundant number, since it is smaller than the sum of its proper divisors (29685864).

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

18036672 is an equidigital number, since it uses as much as digits as its factorization.

18036672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93956 (or 93946 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 18036672 is about 4246.9603247499. The cubic root of 18036672 is about 262.2519961511.

The spelling of 18036672 in words is "eighteen million, thirty-six thousand, six hundred seventy-two".