18340041 has 8 divisors (see below), whose sum is σ = 24502240. Its totient is φ = 12202272.

The previous prime is 18340033. The next prime is 18340043. The reversal of 18340041 is 14004381.

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

It is not a de Polignac number, because 18340041 - 2³ = 18340033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18340043) 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 7 ways as a sum of consecutive naturals, for example, 4276 + ... + 7413.

It is an arithmetic number, because the mean of its divisors is an integer number (3062780).

Almost surely, 2^18340041 is an apocalyptic number.

It is an amenable number.

18340041 is a deficient number, since it is larger than the sum of its proper divisors (6162199).

18340041 is a wasteful number, since it uses less digits than its factorization.

18340041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12215.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 18340041 is about 4282.5274079683. The cubic root of 18340041 is about 263.7141505448.

The spelling of 18340041 in words is "eighteen million, three hundred forty thousand, forty-one".