18734241 has 4 divisors (see below), whose sum is σ = 24978992. Its totient is φ = 12489492.

The previous prime is 18734239. The next prime is 18734251. The reversal of 18734241 is 14243781.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14243781 = 3 ⋅4747927.

It is not a de Polignac number, because 18734241 - 2¹ = 18734239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18734199 and 18734208.

It is not an unprimeable number, because it can be changed into a prime (18734201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3122371 + ... + 3122376.

It is an arithmetic number, because the mean of its divisors is an integer number (6244748).

Almost surely, 2^18734241 is an apocalyptic number.

It is an amenable number.

18734241 is a deficient number, since it is larger than the sum of its proper divisors (6244751).

18734241 is an equidigital number, since it uses as much as digits as its factorization.

18734241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6244750.

The product of its digits is 5376, while the sum is 30.

The square root of 18734241 is about 4328.3069438292. The cubic root of 18734241 is about 265.5901928278.

The spelling of 18734241 in words is "eighteen million, seven hundred thirty-four thousand, two hundred forty-one".