1128280552 has 16 divisors (see below), whose sum is σ = 2417744160. Its totient is φ = 483548784.

The previous prime is 1128280547. The next prime is 1128280609. The reversal of 1128280552 is 2550828211.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10073878 + ... + 10073989.

It is an arithmetic number, because the mean of its divisors is an integer number (151109010).

Almost surely, 2^1128280552 is an apocalyptic number.

It is an amenable number.

1128280552 is an abundant number, since it is smaller than the sum of its proper divisors (1289463608).

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

1128280552 is a wasteful number, since it uses less digits than its factorization.

1128280552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20147880 (or 20147876 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 1128280552 is about 33589.8876449446. The cubic root of 1128280552 is about 1041.0518672310.

The spelling of 1128280552 in words is "one billion, one hundred twenty-eight million, two hundred eighty thousand, five hundred fifty-two".