4221368 has 8 divisors (see below), whose sum is σ = 7915080. Its totient is φ = 2110680.

The previous prime is 4221361. The next prime is 4221379. The reversal of 4221368 is 8631224.

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 4² + 2¹⁴ + 2²² + 1 + 3⁸ + 6 + 8⁴ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263828 + ... + 263843.

It is an arithmetic number, because the mean of its divisors is an integer number (989385).

Almost surely, 2^4221368 is an apocalyptic number.

It is an amenable number.

4221368 is a deficient number, since it is larger than the sum of its proper divisors (3693712).

4221368 is a wasteful number, since it uses less digits than its factorization.

4221368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527677 (or 527673 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 4221368 is about 2054.5967974277. The cubic root of 4221368 is about 161.6160189002.

The spelling of 4221368 in words is "four million, two hundred twenty-one thousand, three hundred sixty-eight".