4221268 has 24 divisors (see below), whose sum is σ = 7901600. Its totient is φ = 1967328.

The previous prime is 4221263. The next prime is 4221271. The reversal of 4221268 is 8621224.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221263) 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, 4678 + ... + 5506.

Almost surely, 2^4221268 is an apocalyptic number.

It is an amenable number.

4221268 is a deficient number, since it is larger than the sum of its proper divisors (3680332).

4221268 is a wasteful number, since it uses less digits than its factorization.

4221268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919 (or 917 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 4221268 is about 2054.5724616085. The cubic root of 4221268 is about 161.6147427160.

It can be divided in two parts, 4221 and 268, that added together give a square (4489 = 67²).

The spelling of 4221268 in words is "four million, two hundred twenty-one thousand, two hundred sixty-eight".