1227937228 has 48 divisors (see below), whose sum is σ = 2516290560. Its totient is φ = 513386496.

The previous prime is 1227937189. The next prime is 1227937247. The reversal of 1227937228 is 8227397221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455308 + ... + 457996.

It is an arithmetic number, because the mean of its divisors is an integer number (52422720).

Almost surely, 2^1227937228 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 1227937228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1258145280).

1227937228 is an abundant number, since it is smaller than the sum of its proper divisors (1288353332).

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

1227937228 is a wasteful number, since it uses less digits than its factorization.

1227937228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094 (or 3092 counting only the distinct ones).

The product of its digits is 169344, while the sum is 43.

The square root of 1227937228 is about 35041.9352776070. The cubic root of 1227937228 is about 1070.8419808810.

The spelling of 1227937228 in words is "one billion, two hundred twenty-seven million, nine hundred thirty-seven thousand, two hundred twenty-eight".