18025648 has 20 divisors (see below), whose sum is σ = 35254440. Its totient is φ = 8927744.

The previous prime is 18025639. The next prime is 18025649. The reversal of 18025648 is 84652081.

It is not an unprimeable number, because it can be changed into a prime (18025649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3553 + ... + 6976.

It is an arithmetic number, because the mean of its divisors is an integer number (1762722).

Almost surely, 2^18025648 is an apocalyptic number.

It is an amenable number.

18025648 is a deficient number, since it is larger than the sum of its proper divisors (17228792).

18025648 is a wasteful number, since it uses less digits than its factorization.

18025648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10644 (or 10638 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 18025648 is about 4245.6622569394. The cubic root of 18025648 is about 262.1985558562.

The spelling of 18025648 in words is "eighteen million, twenty-five thousand, six hundred forty-eight".