4028216 has 32 divisors (see below), whose sum is σ = 7938000. Its totient is φ = 1913856.

The previous prime is 4028191. The next prime is 4028221. The reversal of 4028216 is 6128204.

It is a junction number, because it is equal to n+sod(n) for n = 4028191 and 4028200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22415 + ... + 22593.

Almost surely, 2^4028216 is an apocalyptic number.

It is an amenable number.

4028216 is a deficient number, since it is larger than the sum of its proper divisors (3909784).

4028216 is a wasteful number, since it uses less digits than its factorization.

4028216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 4028216 is about 2007.0416039534. The cubic root of 4028216 is about 159.1124818835.

The spelling of 4028216 in words is "four million, twenty-eight thousand, two hundred sixteen".