18528448 has 56 divisors (see below), whose sum is σ = 38862000. Its totient is φ = 8752128.

The previous prime is 18528431. The next prime is 18528449. The reversal of 18528448 is 84482581.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18528448.

It is not an unprimeable number, because it can be changed into a prime (18528449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124278 + ... + 124426.

Almost surely, 2^18528448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18528448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19431000).

18528448 is an abundant number, since it is smaller than the sum of its proper divisors (20333552).

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

18528448 is a wasteful number, since it uses less digits than its factorization.

18528448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 247 counting only the distinct ones).

The product of its digits is 81920, while the sum is 40.

The square root of 18528448 is about 4304.4683760018. The cubic root of 18528448 is about 264.6141197538.

The spelling of 18528448 in words is "eighteen million, five hundred twenty-eight thousand, four hundred forty-eight".