2806216 has 16 divisors (see below), whose sum is σ = 6013440.
Its totient is φ = 1202640.
The previous prime is 2806211. The next prime is 2806231. The reversal of 2806216 is 6126082.
It is a zygodrome in base 13.
It is not an unprimeable number, because it can be changed into a prime (2806211) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25000 + ... + 25111.
It is an arithmetic number, because the mean of its divisors is an integer number (375840).
22806216 is an apocalyptic number.
It is an amenable number.
2806216 is an abundant number, since it is smaller than the sum of its proper divisors (3207224).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2806216 is a wasteful number, since it uses less digits than its factorization.
2806216 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50124 (or 50120 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 25.
The square root of 2806216 is about 1675.1764086209.
The cubic root of 2806216 is about 141.0501975756.
The spelling of 2806216 in words is "two million, eight hundred six thousand, two hundred sixteen".