2220844 has 12 divisors (see below), whose sum is σ = 3969504. Its totient is φ = 1086704.

The previous prime is 2220839. The next prime is 2220887. The reversal of 2220844 is 4480222.

It is a congruent 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, 5719 + ... + 6094.

It is an arithmetic number, because the mean of its divisors is an integer number (330792).

2^2220844 is an apocalyptic number.

It is an amenable number.

2220844 is a deficient number, since it is larger than the sum of its proper divisors (1748660).

2220844 is a wasteful number, since it uses less digits than its factorization.

2220844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11864 (or 11862 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 2220844 is about 1490.2496435161. The cubic root of 2220844 is about 130.4686046719.

The spelling of 2220844 in words is "two million, two hundred twenty thousand, eight hundred forty-four".