18082516 has 6 divisors (see below), whose sum is σ = 31644410. Its totient is φ = 9041256.

The previous prime is 18082511. The next prime is 18082541. The reversal of 18082516 is 61528081.

It can be written as a sum of positive squares in only one way, i.e., 17606416 + 476100 = 4196^2 + 690^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18082511) by changing a digit.

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 as a sum of consecutive naturals, namely, 2260311 + ... + 2260318.

Almost surely, 2^18082516 is an apocalyptic number.

It is an amenable number.

18082516 is a deficient number, since it is larger than the sum of its proper divisors (13561894).

18082516 is a wasteful number, since it uses less digits than its factorization.

18082516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4520633 (or 4520631 counting only the distinct ones).

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

The square root of 18082516 is about 4252.3541715149. The cubic root of 18082516 is about 262.4739977267.

The spelling of 18082516 in words is "eighteen million, eighty-two thousand, five hundred sixteen".