4221772 has 12 divisors (see below), whose sum is σ = 7403760. Its totient is φ = 2106416.

The previous prime is 4221769. The next prime is 4221779. The reversal of 4221772 is 2771224.

It is not an unprimeable number, because it can be changed into a prime (4221779) 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, 1929 + ... + 3487.

It is an arithmetic number, because the mean of its divisors is an integer number (616980).

Almost surely, 2^4221772 is an apocalyptic number.

It is an amenable number.

4221772 is a deficient number, since it is larger than the sum of its proper divisors (3181988).

4221772 is a wasteful number, since it uses less digits than its factorization.

4221772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240 (or 2238 counting only the distinct ones).

The product of its digits is 1568, while the sum is 25.

The square root of 4221772 is about 2054.6951112026. The cubic root of 4221772 is about 161.6211744792.

Adding to 4221772 its reverse (2771224), we get a palindrome (6992996).

The spelling of 4221772 in words is "four million, two hundred twenty-one thousand, seven hundred seventy-two".