18066734 has 16 divisors (see below), whose sum is σ = 31211136. Its totient is φ = 7683000.

The previous prime is 18066721. The next prime is 18066743. The reversal of 18066734 is 43766081.

It is a junction number, because it is equal to n+sod(n) for n = 18066694 and 18066703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3092 + ... + 6759.

It is an arithmetic number, because the mean of its divisors is an integer number (1950696).

Almost surely, 2^18066734 is an apocalyptic number.

18066734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18066734 is a deficient number, since it is larger than the sum of its proper divisors (13144402).

18066734 is a wasteful number, since it uses less digits than its factorization.

18066734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9991.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 18066734 is about 4250.4980884598. The cubic root of 18066734 is about 262.3976150977.

The spelling of 18066734 in words is "eighteen million, sixty-six thousand, seven hundred thirty-four".