4220841 has 4 divisors (see below), whose sum is σ = 5627792. Its totient is φ = 2813892.

The previous prime is 4220819. The next prime is 4220851. The reversal of 4220841 is 1480224.

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 not a de Polignac number, because 4220841 - 2⁵ = 4220809 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4220851) 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, 703471 + ... + 703476.

It is an arithmetic number, because the mean of its divisors is an integer number (1406948).

Almost surely, 2^4220841 is an apocalyptic number.

It is an amenable number.

4220841 is a deficient number, since it is larger than the sum of its proper divisors (1406951).

4220841 is a wasteful number, since it uses less digits than its factorization.

4220841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406950.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 4220841 is about 2054.4685444173. The cubic root of 4220841 is about 161.6092931827.

The spelling of 4220841 in words is "four million, two hundred twenty thousand, eight hundred forty-one".