2850221 has 16 divisors (see below), whose sum is σ = 3283200. Its totient is φ = 2450880.

The previous prime is 2850193. The next prime is 2850223. The reversal of 2850221 is 1220582.

It is not a de Polignac number, because 2850221 - 2⁶ = 2850157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2850193 and 2850202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2850223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19055 + ... + 19203.

It is an arithmetic number, because the mean of its divisors is an integer number (205200).

2^2850221 is an apocalyptic number.

It is an amenable number.

2850221 is a deficient number, since it is larger than the sum of its proper divisors (432979).

2850221 is a wasteful number, since it uses less digits than its factorization.

2850221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2850221 is about 1688.2597548956. The cubic root of 2850221 is about 141.7836585297.

The spelling of 2850221 in words is "two million, eight hundred fifty thousand, two hundred twenty-one".