18385124 has 6 divisors (see below), whose sum is σ = 32173974. Its totient is φ = 9192560.

The previous prime is 18385121. The next prime is 18385151. The reversal of 18385124 is 42158381.

It can be written as a sum of positive squares in only one way, i.e., 18062500 + 322624 = 4250^2 + 568^2 .

It is not an unprimeable number, because it can be changed into a prime (18385121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2298137 + ... + 2298144.

It is an arithmetic number, because the mean of its divisors is an integer number (5362329).

Almost surely, 2^18385124 is an apocalyptic number.

It is an amenable number.

18385124 is a deficient number, since it is larger than the sum of its proper divisors (13788850).

18385124 is a wasteful number, since it uses less digits than its factorization.

18385124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4596285 (or 4596283 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 18385124 is about 4287.7877745989. The cubic root of 18385124 is about 263.9300587602.

The spelling of 18385124 in words is "eighteen million, three hundred eighty-five thousand, one hundred twenty-four".