1128632748 has 48 divisors (see below), whose sum is σ = 2784768000. Its totient is φ = 355190400.

The previous prime is 1128632741. The next prime is 1128632749. The reversal of 1128632748 is 8472368211.

It is not an unprimeable number, because it can be changed into a prime (1128632741) 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, 21748 + ... + 52251.

It is an arithmetic number, because the mean of its divisors is an integer number (58016000).

Almost surely, 2^1128632748 is an apocalyptic number.

It is an amenable number.

1128632748 is an abundant number, since it is smaller than the sum of its proper divisors (1656135252).

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

1128632748 is a wasteful number, since it uses less digits than its factorization.

1128632748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74078 (or 74076 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 1128632748 is about 33595.1298256161. The cubic root of 1128632748 is about 1041.1601784008.

The spelling of 1128632748 in words is "one billion, one hundred twenty-eight million, six hundred thirty-two thousand, seven hundred forty-eight".