2820544228 has 12 divisors (see below), whose sum is σ = 4955619312. Its totient is φ = 1404653000.

The previous prime is 2820544183. The next prime is 2820544271. The reversal of 2820544228 is 8224450282.

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, 1403650 + ... + 1405657.

It is an arithmetic number, because the mean of its divisors is an integer number (412968276).

Almost surely, 2^2820544228 is an apocalyptic number.

It is an amenable number.

2820544228 is a deficient number, since it is larger than the sum of its proper divisors (2135075084).

2820544228 is a wasteful number, since it uses less digits than its factorization.

2820544228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809562 (or 2809560 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 37.

The square root of 2820544228 is about 53108.7961452715. The cubic root of 2820544228 is about 1412.8985238093.

The spelling of 2820544228 in words is "two billion, eight hundred twenty million, five hundred forty-four thousand, two hundred twenty-eight".