2844220 has 12 divisors (see below), whose sum is σ = 5972904. Its totient is φ = 1137680.

The previous prime is 2844199. The next prime is 2844221. The reversal of 2844220 is 224482.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2844191 and 2844200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2844221) 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, 71086 + ... + 71125.

It is an arithmetic number, because the mean of its divisors is an integer number (497742).

2^2844220 is an apocalyptic number.

2844220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2844220 is an abundant number, since it is smaller than the sum of its proper divisors (3128684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2844220 is a wasteful number, since it uses less digits than its factorization.

2844220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142220 (or 142218 counting only the distinct ones).

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

The square root of 2844220 is about 1686.4815445181. The cubic root of 2844220 is about 141.6840824418.

The spelling of 2844220 in words is "two million, eight hundred forty-four thousand, two hundred twenty".