18670241 has 4 divisors (see below), whose sum is σ = 18767172. Its totient is φ = 18573312.

The previous prime is 18670219. The next prime is 18670247. The reversal of 18670241 is 14207681.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14207681 = 599 ⋅23719.

It can be written as a sum of positive squares in 2 ways, for example, as 13719616 + 4950625 = 3704^2 + 2225^2 .

It is a cyclic number.

It is not a de Polignac number, because 18670241 - 2⁶ = 18670177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18670247) 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, 48176 + ... + 48561.

It is an arithmetic number, because the mean of its divisors is an integer number (4691793).

Almost surely, 2^18670241 is an apocalyptic number.

It is an amenable number.

18670241 is a deficient number, since it is larger than the sum of its proper divisors (96931).

18670241 is an equidigital number, since it uses as much as digits as its factorization.

18670241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96930.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 18670241 is about 4320.9074278443. The cubic root of 18670241 is about 265.2874109659.

The spelling of 18670241 in words is "eighteen million, six hundred seventy thousand, two hundred forty-one".