1268445228 has 48 divisors (see below), whose sum is σ = 3078620160. Its totient is φ = 406036800.

The previous prime is 1268445221. The next prime is 1268445229. The reversal of 1268445228 is 8225448621.

It is a self number, because there is not a number n which added to its sum of digits gives 1268445228.

It is not an unprimeable number, because it can be changed into a prime (1268445221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35718 + ... + 61746.

It is an arithmetic number, because the mean of its divisors is an integer number (64137920).

Almost surely, 2^1268445228 is an apocalyptic number.

It is an amenable number.

1268445228 is an abundant number, since it is smaller than the sum of its proper divisors (1810174932).

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

1268445228 is a wasteful number, since it uses less digits than its factorization.

1268445228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26198 (or 26196 counting only the distinct ones).

The product of its digits is 245760, while the sum is 42.

The square root of 1268445228 is about 35615.2387048016. The cubic root of 1268445228 is about 1082.4900330657.

The spelling of 1268445228 in words is "one billion, two hundred sixty-eight million, four hundred forty-five thousand, two hundred twenty-eight".