18825648 has 20 divisors (see below), whose sum is σ = 48633048. Its totient is φ = 6275200.

The previous prime is 18825643. The next prime is 18825659. The reversal of 18825648 is 84652881.

It is not an unprimeable number, because it can be changed into a prime (18825643) by changing a digit.

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, 196053 + ... + 196148.

Almost surely, 2^18825648 is an apocalyptic number.

It is an amenable number.

18825648 is an abundant number, since it is smaller than the sum of its proper divisors (29807400).

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

18825648 is a wasteful number, since it uses less digits than its factorization.

18825648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392212 (or 392206 counting only the distinct ones).

The product of its digits is 122880, while the sum is 42.

The square root of 18825648 is about 4338.8533047339. The cubic root of 18825648 is about 266.0214428603.

The spelling of 18825648 in words is "eighteen million, eight hundred twenty-five thousand, six hundred forty-eight".