1128438848 has 28 divisors (see below), whose sum is σ = 2246350092. Its totient is φ = 562429440.

The previous prime is 1128438833. The next prime is 1128438877. The reversal of 1128438848 is 8488348211.

It can be written as a sum of positive squares in 2 ways, for example, as 65157184 + 1063281664 = 8072^2 + 32608^2 .

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, 7523 + ... + 48098.

It is an arithmetic number, because the mean of its divisors is an integer number (80226789).

Almost surely, 2^1128438848 is an apocalyptic number.

It is an amenable number.

1128438848 is a deficient number, since it is larger than the sum of its proper divisors (1117911244).

1128438848 is an equidigital number, since it uses as much as digits as its factorization.

1128438848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55950 (or 55940 counting only the distinct ones).

The product of its digits is 393216, while the sum is 47.

The square root of 1128438848 is about 33592.2438667023. The cubic root of 1128438848 is about 1041.1005509382.

The spelling of 1128438848 in words is "one billion, one hundred twenty-eight million, four hundred thirty-eight thousand, eight hundred forty-eight".