1128569500 has 24 divisors (see below), whose sum is σ = 2464796880. Its totient is φ = 451427600.

The previous prime is 1128569483. The next prime is 1128569549. The reversal of 1128569500 is 59658211.

It is a self number, because there is not a number n which added to its sum of digits gives 1128569500.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1128070 + ... + 1129069.

It is an arithmetic number, because the mean of its divisors is an integer number (102699870).

Almost surely, 2^1128569500 is an apocalyptic number.

1128569500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1128569500 is an abundant number, since it is smaller than the sum of its proper divisors (1336227380).

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

1128569500 is a wasteful number, since it uses less digits than its factorization.

1128569500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257158 (or 2257146 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 37.

The square root of 1128569500 is about 33594.1884855104. The cubic root of 1128569500 is about 1041.1407293435.

The spelling of 1128569500 in words is "one billion, one hundred twenty-eight million, five hundred sixty-nine thousand, five hundred".