4006216 has 8 divisors (see below), whose sum is σ = 7511670. Its totient is φ = 2003104.

The previous prime is 4006201. The next prime is 4006229. The reversal of 4006216 is 6126004.

It can be written as a sum of positive squares in only one way, i.e., 3880900 + 125316 = 1970^2 + 354^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 4006193 and 4006202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250381 + ... + 250396.

Almost surely, 2^4006216 is an apocalyptic number.

It is an amenable number.

4006216 is a deficient number, since it is larger than the sum of its proper divisors (3505454).

4006216 is a wasteful number, since it uses less digits than its factorization.

4006216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500783 (or 500779 counting only the distinct ones).

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

The square root of 4006216 is about 2001.5533967396. The cubic root of 4006216 is about 158.8222900143.

The spelling of 4006216 in words is "four million, six thousand, two hundred sixteen".