18328041 has 6 divisors (see below), whose sum is σ = 26473850. Its totient is φ = 12218688.

The previous prime is 18328039. The next prime is 18328049. The reversal of 18328041 is 14082381.

It can be written as a sum of positive squares in only one way, i.e., 13505625 + 4822416 = 3675^2 + 2196^2 .

It is not a de Polignac number, because 18328041 - 2¹ = 18328039 is a prime.

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 = 18327996 and 18328014.

It is not an unprimeable number, because it can be changed into a prime (18328049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1018216 + ... + 1018233.

Almost surely, 2^18328041 is an apocalyptic number.

It is an amenable number.

18328041 is a deficient number, since it is larger than the sum of its proper divisors (8145809).

18328041 is a wasteful number, since it uses less digits than its factorization.

18328041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036455 (or 2036452 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 18328041 is about 4281.1261368944. The cubic root of 18328041 is about 263.6566214066.

It can be divided in two parts, 183 and 28041, that added together give a square (28224 = 168²).

The spelling of 18328041 in words is "eighteen million, three hundred twenty-eight thousand, forty-one".