18072528 has 20 divisors (see below), whose sum is σ = 46687488. Its totient is φ = 6024160.

The previous prime is 18072499. The next prime is 18072557. The reversal of 18072528 is 82527081.

It is an interprime number because it is at equal distance from previous prime (18072499) and next prime (18072557).

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 188208 + ... + 188303.

Almost surely, 2^18072528 is an apocalyptic number.

It is an amenable number.

18072528 is an abundant number, since it is smaller than the sum of its proper divisors (28614960).

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

18072528 is a wasteful number, since it uses less digits than its factorization.

18072528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376522 (or 376516 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 18072528 is about 4251.1796010049. The cubic root of 18072528 is about 262.4256623970.

The spelling of 18072528 in words is "eighteen million, seventy-two thousand, five hundred twenty-eight".