18396041 has 4 divisors (see below), whose sum is σ = 18469584. Its totient is φ = 18322500.

The previous prime is 18396013. The next prime is 18396071. The reversal of 18396041 is 14069381.

It is a happy number.

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: 14069381 = 31 ⋅453851.

It is a cyclic number.

It is not a de Polignac number, because 18396041 - 2¹⁰ = 18395017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18395989 and 18396007.

It is not an unprimeable number, because it can be changed into a prime (18396011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36395 + ... + 36896.

It is an arithmetic number, because the mean of its divisors is an integer number (4617396).

Almost surely, 2^18396041 is an apocalyptic number.

It is an amenable number.

18396041 is a deficient number, since it is larger than the sum of its proper divisors (73543).

18396041 is an equidigital number, since it uses as much as digits as its factorization.

18396041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73542.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 18396041 is about 4289.0606197628. The cubic root of 18396041 is about 263.9822885654.

The spelling of 18396041 in words is "eighteen million, three hundred ninety-six thousand, forty-one".