1128382020 has 72 divisors (see below), whose sum is σ = 3533187840. Its totient is φ = 291193920.

The previous prime is 1128382009. The next prime is 1128382103. The reversal of 1128382020 is 202838211.

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 23 ways as a sum of consecutive naturals, for example, 95530 + ... + 106689.

Almost surely, 2^1128382020 is an apocalyptic number.

1128382020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1128382020 is an abundant number, since it is smaller than the sum of its proper divisors (2404805820).

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

1128382020 is a wasteful number, since it uses less digits than its factorization.

1128382020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202265 (or 202260 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1128382020 is about 33591.3980060372. The cubic root of 1128382020 is about 1041.0830740924.

The spelling of 1128382020 in words is "one billion, one hundred twenty-eight million, three hundred eighty-two thousand, twenty".