1230772228 has 48 divisors (see below), whose sum is σ = 2573835264. Its totient is φ = 503506080.

The previous prime is 1230772183. The next prime is 1230772247. The reversal of 1230772228 is 8222770321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1230772193 and 1230772202.

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, 366051 + ... + 369397.

It is an arithmetic number, because the mean of its divisors is an integer number (53621568).

Almost surely, 2^1230772228 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 1230772228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1286917632).

1230772228 is an abundant number, since it is smaller than the sum of its proper divisors (1343063036).

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

1230772228 is a wasteful number, since it uses less digits than its factorization.

1230772228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3952 (or 3950 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 1230772228 is about 35082.3634893660. The cubic root of 1230772228 is about 1071.6654495973.

The spelling of 1230772228 in words is "one billion, two hundred thirty million, seven hundred seventy-two thousand, two hundred twenty-eight".