1128281356 has 12 divisors (see below), whose sum is σ = 1974833280. Its totient is φ = 564043280.

The previous prime is 1128281321. The next prime is 1128281387. The reversal of 1128281356 is 6531828211.

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, 5886 + ... + 47866.

It is an arithmetic number, because the mean of its divisors is an integer number (164569440).

Almost surely, 2^1128281356 is an apocalyptic number.

It is an amenable number.

1128281356 is a deficient number, since it is larger than the sum of its proper divisors (846551924).

1128281356 is a wasteful number, since it uses less digits than its factorization.

1128281356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48704 (or 48702 counting only the distinct ones).

The product of its digits is 23040, while the sum is 37.

The square root of 1128281356 is about 33589.8996128300. The cubic root of 1128281356 is about 1041.0521145116.

The spelling of 1128281356 in words is "one billion, one hundred twenty-eight million, two hundred eighty-one thousand, three hundred fifty-six".