18036336 has 20 divisors (see below), whose sum is σ = 46593992. Its totient is φ = 6012096.

The previous prime is 18036331. The next prime is 18036341. The reversal of 18036336 is 63363081.

It is an interprime number because it is at equal distance from previous prime (18036331) and next prime (18036341).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18036331) by changing a digit.

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, 187831 + ... + 187926.

Almost surely, 2^18036336 is an apocalyptic number.

18036336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18036336 is an abundant number, since it is smaller than the sum of its proper divisors (28557656).

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

18036336 is a wasteful number, since it uses less digits than its factorization.

18036336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375768 (or 375762 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 18036336 is about 4246.9207668616. The cubic root of 18036336 is about 262.2503676685.

The spelling of 18036336 in words is "eighteen million, thirty-six thousand, three hundred thirty-six".