18920041 has 8 divisors (see below), whose sum is σ = 21654464. Its totient is φ = 16193520.

The previous prime is 18920003. The next prime is 18920047. The reversal of 18920041 is 14002981.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18920041 - 2⁹ = 18919529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18919988 and 18920015.

It is not an unprimeable number, because it can be changed into a prime (18920047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4651 + ... + 7711.

It is an arithmetic number, because the mean of its divisors is an integer number (2706808).

Almost surely, 2^18920041 is an apocalyptic number.

It is an amenable number.

18920041 is a deficient number, since it is larger than the sum of its proper divisors (2734423).

18920041 is an equidigital number, since it uses as much as digits as its factorization.

18920041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3951.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 18920041 is about 4349.7173471388. The cubic root of 18920041 is about 266.4653179737.

The spelling of 18920041 in words is "eighteen million, nine hundred twenty thousand, forty-one".