18006748 has 12 divisors (see below), whose sum is σ = 31542280. Its totient is φ = 8994672.

The previous prime is 18006743. The next prime is 18006763. The reversal of 18006748 is 84760081.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18006743) 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, 5443 + ... + 8101.

Almost surely, 2^18006748 is an apocalyptic number.

It is an amenable number.

18006748 is a deficient number, since it is larger than the sum of its proper divisors (13535532).

18006748 is a wasteful number, since it uses less digits than its factorization.

18006748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4356 (or 4354 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 18006748 is about 4243.4358720263. The cubic root of 18006748 is about 262.1068848902.

The spelling of 18006748 in words is "eighteen million, six thousand, seven hundred forty-eight".