18086528 has 16 divisors (see below), whose sum is σ = 36032010. Its totient is φ = 9043200.

The previous prime is 18086507. The next prime is 18086539. The reversal of 18086528 is 82568081.

It can be written as a sum of positive squares in only one way, i.e., 10291264 + 7795264 = 3208^2 + 2792^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 18086491 and 18086500.

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 as a sum of consecutive naturals, namely, 70523 + ... + 70778.

Almost surely, 2^18086528 is an apocalyptic number.

It is an amenable number.

18086528 is a deficient number, since it is larger than the sum of its proper divisors (17945482).

18086528 is an equidigital number, since it uses as much as digits as its factorization.

18086528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141315 (or 141303 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 18086528 is about 4252.8258840446. The cubic root of 18086528 is about 262.4934081489.

The spelling of 18086528 in words is "eighteen million, eighty-six thousand, five hundred twenty-eight".