4221576 has 48 divisors (see below), whose sum is σ = 12109500. Its totient is φ = 1324032.

The previous prime is 4221571. The next prime is 4221577. The reversal of 4221576 is 6751224.

It can be written as a sum of positive squares in 2 ways, for example, as 4040100 + 181476 = 2010^2 + 426^2 .

It is not an unprimeable number, because it can be changed into a prime (4221571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 501 + ... + 2948.

Almost surely, 2^4221576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4221576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6054750).

4221576 is an abundant number, since it is smaller than the sum of its proper divisors (7887924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4221576 is a wasteful number, since it uses less digits than its factorization.

4221576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3478 (or 3471 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 4221576 is about 2054.6474150082. The cubic root of 4221576 is about 161.6186732988.

The spelling of 4221576 in words is "four million, two hundred twenty-one thousand, five hundred seventy-six".