18144928 has 24 divisors (see below), whose sum is σ = 35858592. Its totient is φ = 9038016.

The previous prime is 18144901. The next prime is 18144949. The reversal of 18144928 is 82944181.

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, 8901 + ... + 10747.

It is an arithmetic number, because the mean of its divisors is an integer number (1494108).

Almost surely, 2^18144928 is an apocalyptic number.

It is an amenable number.

18144928 is a deficient number, since it is larger than the sum of its proper divisors (17713664).

18144928 is a wasteful number, since it uses less digits than its factorization.

18144928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164 (or 2156 counting only the distinct ones).

The product of its digits is 18432, while the sum is 37.

The square root of 18144928 is about 4259.6863734317. The cubic root of 18144928 is about 262.7756282483.

The spelling of 18144928 in words is "eighteen million, one hundred forty-four thousand, nine hundred twenty-eight".