18018064 has 20 divisors (see below), whose sum is σ = 34997760. Its totient is φ = 8986400.

The previous prime is 18018059. The next prime is 18018067. The reversal of 18018064 is 46081081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18018067) 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, 6489 + ... + 8839.

It is an arithmetic number, because the mean of its divisors is an integer number (1749888).

Almost surely, 2^18018064 is an apocalyptic number.

It is an amenable number.

18018064 is a deficient number, since it is larger than the sum of its proper divisors (16979696).

18018064 is a wasteful number, since it uses less digits than its factorization.

18018064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838 (or 2832 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 18018064 is about 4244.7690160950. The cubic root of 18018064 is about 262.1617787633.

The spelling of 18018064 in words is "eighteen million, eighteen thousand, sixty-four".