18304041 has 8 divisors (see below), whose sum is σ = 27891904. Its totient is φ = 10459440.

The previous prime is 18304037. The next prime is 18304051. The reversal of 18304041 is 14040381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18304041 - 2² = 18304037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 871621 = 18304041 / (1 + 8 + 3 + 0 + 4 + 0 + 4 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18303999 and 18304017.

It is not an unprimeable number, because it can be changed into a prime (18304031) 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 7 ways as a sum of consecutive naturals, for example, 435790 + ... + 435831.

It is an arithmetic number, because the mean of its divisors is an integer number (3486488).

Almost surely, 2^18304041 is an apocalyptic number.

It is an amenable number.

18304041 is a deficient number, since it is larger than the sum of its proper divisors (9587863).

18304041 is an equidigital number, since it uses as much as digits as its factorization.

18304041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871631.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 18304041 is about 4278.3222178793. The cubic root of 18304041 is about 263.5414877539.

The spelling of 18304041 in words is "eighteen million, three hundred four thousand, forty-one".