4209841 has 4 divisors (see below), whose sum is σ = 4226112. Its totient is φ = 4193572.

The previous prime is 4209833. The next prime is 4209853. The reversal of 4209841 is 1489024.

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 4209841 - 2³ = 4209833 is a prime.

It is a super-2 number, since 2×4209841² = 35445522490562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4209871) 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, 7741 + ... + 8266.

It is an arithmetic number, because the mean of its divisors is an integer number (1056528).

Almost surely, 2^4209841 is an apocalyptic number.

It is an amenable number.

4209841 is a deficient number, since it is larger than the sum of its proper divisors (16271).

4209841 is a wasteful number, since it uses less digits than its factorization.

4209841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16270.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 4209841 is about 2051.7897065733. The cubic root of 4209841 is about 161.4687802088.

It can be divided in two parts, 4209 and 841, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 4209841 in words is "four million, two hundred nine thousand, eight hundred forty-one".