18741841 has 4 divisors (see below), whose sum is σ = 18907812. Its totient is φ = 18575872.

The previous prime is 18741839. The next prime is 18741883. The reversal of 18741841 is 14814781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14814781 = 101 ⋅146681.

It can be written as a sum of positive squares in 2 ways, for example, as 286225 + 18455616 = 535^2 + 4296^2 .

It is a cyclic number.

It is not a de Polignac number, because 18741841 - 2¹ = 18741839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18741797 and 18741806.

It is not an unprimeable number, because it can be changed into a prime (18744841) 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, 82816 + ... + 83041.

It is an arithmetic number, because the mean of its divisors is an integer number (4726953).

Almost surely, 2^18741841 is an apocalyptic number.

It is an amenable number.

18741841 is a deficient number, since it is larger than the sum of its proper divisors (165971).

18741841 is a wasteful number, since it uses less digits than its factorization.

18741841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165970.

The product of its digits is 7168, while the sum is 34.

The square root of 18741841 is about 4329.1847962405. The cubic root of 18741841 is about 265.6261023438.

The spelling of 18741841 in words is "eighteen million, seven hundred forty-one thousand, eight hundred forty-one".