4321216 has 28 divisors (see below), whose sum is σ = 8641080. Its totient is φ = 2144000.

The previous prime is 4321211. The next prime is 4321231. The reversal of 4321216 is 6121234.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4321193 and 4321202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4321211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15930 + ... + 16198.

It is an arithmetic number, because the mean of its divisors is an integer number (308610).

Almost surely, 2^4321216 is an apocalyptic number.

It is an amenable number.

4321216 is a deficient number, since it is larger than the sum of its proper divisors (4319864).

4321216 is a wasteful number, since it uses less digits than its factorization.

4321216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 522 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 4321216 is about 2078.7534726369. The cubic root of 4321216 is about 162.8803367280.

The spelling of 4321216 in words is "four million, three hundred twenty-one thousand, two hundred sixteen".