18740041 has 4 divisors (see below), whose sum is σ = 18748800. Its totient is φ = 18731284.

The previous prime is 18740021. The next prime is 18740053. The reversal of 18740041 is 14004781.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 18740041 - 2¹³ = 18731849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18739988 and 18740015.

It is not an unprimeable number, because it can be changed into a prime (18740021) 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, 1200 + ... + 6238.

It is an arithmetic number, because the mean of its divisors is an integer number (4687200).

Almost surely, 2^18740041 is an apocalyptic number.

It is an amenable number.

18740041 is a deficient number, since it is larger than the sum of its proper divisors (8759).

18740041 is an equidigital number, since it uses as much as digits as its factorization.

18740041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8758.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 18740041 is about 4328.9768999153. The cubic root of 18740041 is about 265.6175983359.

The spelling of 18740041 in words is "eighteen million, seven hundred forty thousand, forty-one".