1128769608 has 64 divisors (see below), whose sum is σ = 2898181440. Its totient is φ = 366153984.

The previous prime is 1128769601. The next prime is 1128769633. The reversal of 1128769608 is 8069678211.

It is not an unprimeable number, because it can be changed into a prime (1128769601) 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, 300510 + ... + 304242.

It is an arithmetic number, because the mean of its divisors is an integer number (45284085).

Almost surely, 2^1128769608 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 1128769608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1449090720).

1128769608 is an abundant number, since it is smaller than the sum of its proper divisors (1769411832).

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

1128769608 is a wasteful number, since it uses less digits than its factorization.

1128769608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078 (or 4074 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 1128769608 is about 33597.1666662533. The cubic root of 1128769608 is about 1041.2022610071.

The spelling of 1128769608 in words is "one billion, one hundred twenty-eight million, seven hundred sixty-nine thousand, six hundred eight".