4221849 has 8 divisors (see below), whose sum is σ = 5823360. Its totient is φ = 2717456.

The previous prime is 4221829. The next prime is 4221851. The reversal of 4221849 is 9481224.

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

It is a cyclic number.

It is not a de Polignac number, because 4221849 - 2⁹ = 4221337 is a prime.

4221849 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4221829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24177 + ... + 24350.

It is an arithmetic number, because the mean of its divisors is an integer number (727920).

Almost surely, 2^4221849 is an apocalyptic number.

It is an amenable number.

4221849 is a deficient number, since it is larger than the sum of its proper divisors (1601511).

4221849 is a wasteful number, since it uses less digits than its factorization.

4221849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48559.

The product of its digits is 4608, while the sum is 30.

The square root of 4221849 is about 2054.7138486904. The cubic root of 4221849 is about 161.6221570647.

The spelling of 4221849 in words is "four million, two hundred twenty-one thousand, eight hundred forty-nine".