18385148 has 6 divisors (see below), whose sum is σ = 32174016. Its totient is φ = 9192572.

The previous prime is 18385121. The next prime is 18385151. The reversal of 18385148 is 84158381.

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 as a sum of consecutive naturals, namely, 2298140 + ... + 2298147.

It is an arithmetic number, because the mean of its divisors is an integer number (5362336).

Almost surely, 2^18385148 is an apocalyptic number.

It is an amenable number.

18385148 is a deficient number, since it is larger than the sum of its proper divisors (13788868).

18385148 is a wasteful number, since it uses less digits than its factorization.

18385148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4596291 (or 4596289 counting only the distinct ones).

The product of its digits is 30720, while the sum is 38.

The square root of 18385148 is about 4287.7905732440. The cubic root of 18385148 is about 263.9301736052.

The spelling of 18385148 in words is "eighteen million, three hundred eighty-five thousand, one hundred forty-eight".