18016528 has 10 divisors (see below), whose sum is σ = 34907054. Its totient is φ = 9008256.

The previous prime is 18016519. The next prime is 18016543. The reversal of 18016528 is 82561081.

It can be written as a sum of positive squares in only one way, i.e., 17040384 + 976144 = 4128^2 + 988^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18016528.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563001 + ... + 563032.

Almost surely, 2^18016528 is an apocalyptic number.

It is an amenable number.

18016528 is a deficient number, since it is larger than the sum of its proper divisors (16890526).

18016528 is a wasteful number, since it uses less digits than its factorization.

18016528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126041 (or 1126035 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 18016528 is about 4244.5880836661. The cubic root of 18016528 is about 262.1543289815.

The spelling of 18016528 in words is "eighteen million, sixteen thousand, five hundred twenty-eight".