1128457548 has 48 divisors (see below), whose sum is σ = 2942590560. Its totient is φ = 373972032.

The previous prime is 1128457537. The next prime is 1128457549. The reversal of 1128457548 is 8457548211.

1128457548 is a `hidden beast` number, since 11 + 28 + 4 + 575 + 48 = 666.

It is not an unprimeable number, because it can be changed into a prime (1128457549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11515 + ... + 48882.

It is an arithmetic number, because the mean of its divisors is an integer number (61303970).

Almost surely, 2^1128457548 is an apocalyptic number.

1128457548 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1128457548 is an abundant number, since it is smaller than the sum of its proper divisors (1814133012).

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

1128457548 is a wasteful number, since it uses less digits than its factorization.

1128457548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60583 (or 60575 counting only the distinct ones).

The product of its digits is 358400, while the sum is 45.

The square root of 1128457548 is about 33592.5222036095. The cubic root of 1128457548 is about 1041.1063017957.

The spelling of 1128457548 in words is "one billion, one hundred twenty-eight million, four hundred fifty-seven thousand, five hundred forty-eight".