18683741 has 4 divisors (see below), whose sum is σ = 19139484. Its totient is φ = 18228000.

The previous prime is 18683729. The next prime is 18683747. The reversal of 18683741 is 14738681.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14738681 = 179 ⋅82339.

It can be written as a sum of positive squares in 2 ways, for example, as 1428025 + 17255716 = 1195^2 + 4154^2 .

It is a cyclic number.

It is not a de Polignac number, because 18683741 - 2¹⁴ = 18667357 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 = 18683695 and 18683704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18683747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227810 + ... + 227891.

It is an arithmetic number, because the mean of its divisors is an integer number (4784871).

Almost surely, 2^18683741 is an apocalyptic number.

It is an amenable number.

18683741 is a deficient number, since it is larger than the sum of its proper divisors (455743).

18683741 is an equidigital number, since it uses as much as digits as its factorization.

18683741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455742.

The product of its digits is 32256, while the sum is 38.

The square root of 18683741 is about 4322.4693174157. The cubic root of 18683741 is about 265.3513365322.

The spelling of 18683741 in words is "eighteen million, six hundred eighty-three thousand, seven hundred forty-one".