4840221 has 4 divisors (see below), whose sum is σ = 6453632. Its totient is φ = 3226812.

The previous prime is 4840219. The next prime is 4840243. The reversal of 4840221 is 1220484.

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 4840221 - 2¹ = 4840219 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4840211) 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 3 ways as a sum of consecutive naturals, for example, 806701 + ... + 806706.

It is an arithmetic number, because the mean of its divisors is an integer number (1613408).

Almost surely, 2^4840221 is an apocalyptic number.

It is an amenable number.

4840221 is a deficient number, since it is larger than the sum of its proper divisors (1613411).

4840221 is a wasteful number, since it uses less digits than its factorization.

4840221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613410.

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

The square root of 4840221 is about 2200.0502266994. The cubic root of 4840221 is about 169.1563857094.

The spelling of 4840221 in words is "four million, eight hundred forty thousand, two hundred twenty-one".