1128727296 has 108 divisors (see below), whose sum is σ = 3330375048. Its totient is φ = 367460352.

The previous prime is 1128727261. The next prime is 1128727331. The reversal of 1128727296 is 6927278211.

It is a happy number.

1128727296 is a `hidden beast` number, since 11 + 287 + 272 + 96 = 666.

It is an interprime number because it is at equal distance from previous prime (1128727261) and next prime (1128727331).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93376 + ... + 104768.

It is an arithmetic number, because the mean of its divisors is an integer number (30836806).

Almost surely, 2^1128727296 is an apocalyptic number.

1128727296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1128727296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1665187524).

1128727296 is an abundant number, since it is smaller than the sum of its proper divisors (2201647752).

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

1128727296 is a wasteful number, since it uses less digits than its factorization.

1128727296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11458 (or 11441 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 1128727296 is about 33596.5369643956. The cubic root of 1128727296 is about 1041.1892510004.

It can be divided in two parts, 11287 and 27296, that added together give a palindrome (38583).

The spelling of 1128727296 in words is "one billion, one hundred twenty-eight million, seven hundred twenty-seven thousand, two hundred ninety-six".