18620241 has 4 divisors (see below), whose sum is σ = 24826992. Its totient is φ = 12413492.

The previous prime is 18620207. The next prime is 18620249. The reversal of 18620241 is 14202681.

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.

It is a cyclic number.

It is not a de Polignac number, because 18620241 - 2⁷ = 18620113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18620249) 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, 3103371 + ... + 3103376.

It is an arithmetic number, because the mean of its divisors is an integer number (6206748).

Almost surely, 2^18620241 is an apocalyptic number.

It is an amenable number.

18620241 is a deficient number, since it is larger than the sum of its proper divisors (6206751).

18620241 is an equidigital number, since it uses as much as digits as its factorization.

18620241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6206750.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 18620241 is about 4315.1177272468. The cubic root of 18620241 is about 265.0503808329.

The spelling of 18620241 in words is "eighteen million, six hundred twenty thousand, two hundred forty-one".