18528066 has 12 divisors (see below), whose sum is σ = 40144182. Its totient is φ = 6176016.

The previous prime is 18528043. The next prime is 18528073. The reversal of 18528066 is 66082581.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16232841 + 2295225 = 4029^2 + 1515^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18528066.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 514651 + ... + 514686.

Almost surely, 2^18528066 is an apocalyptic number.

18528066 is an abundant number, since it is smaller than the sum of its proper divisors (21616116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18528066 is a wasteful number, since it uses less digits than its factorization.

18528066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029345 (or 1029342 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 18528066 is about 4304.4240032785. The cubic root of 18528066 is about 264.6123012297.

The spelling of 18528066 in words is "eighteen million, five hundred twenty-eight thousand, sixty-six".