4394216 has 16 divisors (see below), whose sum is σ = 8440740. Its totient is φ = 2143360.

The previous prime is 4394209. The next prime is 4394227. The reversal of 4394216 is 6124934.

It can be written as a sum of positive squares in 2 ways, for example, as 3062500 + 1331716 = 1750^2 + 1154^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6371 + ... + 7026.

Almost surely, 2^4394216 is an apocalyptic number.

It is an amenable number.

4394216 is a deficient number, since it is larger than the sum of its proper divisors (4046524).

4394216 is a wasteful number, since it uses less digits than its factorization.

4394216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13444 (or 13440 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 4394216 is about 2096.2385360450. The cubic root of 4394216 is about 163.7924202978.

The spelling of 4394216 in words is "four million, three hundred ninety-four thousand, two hundred sixteen".