2012556228 has 72 divisors (see below), whose sum is σ = 4973165568. Its totient is φ = 633362112.

The previous prime is 2012556211. The next prime is 2012556241. The reversal of 2012556228 is 8226552102.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1658550 + ... + 1659762.

It is an arithmetic number, because the mean of its divisors is an integer number (69071744).

Almost surely, 2^2012556228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2012556228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2486582784).

2012556228 is an abundant number, since it is smaller than the sum of its proper divisors (2960609340).

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

2012556228 is a wasteful number, since it uses less digits than its factorization.

2012556228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641 (or 1620 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 2012556228 is about 44861.5228007253. The cubic root of 2012556228 is about 1262.5521940060.

The spelling of 2012556228 in words is "two billion, twelve million, five hundred fifty-six thousand, two hundred twenty-eight".