18328941 has 12 divisors (see below), whose sum is σ = 28032732. Its totient is φ = 11500416.

The previous prime is 18328903. The next prime is 18328943. The reversal of 18328941 is 14982381.

It can be written as a sum of positive squares in 2 ways, for example, as 17015625 + 1313316 = 4125^2 + 1146^2 .

It is not a de Polignac number, because 18328941 - 2¹³ = 18320749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18328896 and 18328905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18328943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59746 + ... + 60051.

It is an arithmetic number, because the mean of its divisors is an integer number (2336061).

Almost surely, 2^18328941 is an apocalyptic number.

It is an amenable number.

18328941 is a deficient number, since it is larger than the sum of its proper divisors (9703791).

18328941 is a wasteful number, since it uses less digits than its factorization.

18328941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119820 (or 119817 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 18328941 is about 4281.2312481341. The cubic root of 18328941 is about 263.6609369629.

The spelling of 18328941 in words is "eighteen million, three hundred twenty-eight thousand, nine hundred forty-one".