1128320032 has 48 divisors (see below), whose sum is σ = 2607353280. Its totient is φ = 470492928.

The previous prime is 1128320003. The next prime is 1128320033. The reversal of 1128320032 is 2300238211.

It is a super-2 number, since 2×1128320032² = 2546212189224962048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1128319985 and 1128320012.

It is not an unprimeable number, because it can be changed into a prime (1128320033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59782 + ... + 76357.

It is an arithmetic number, because the mean of its divisors is an integer number (54319860).

Almost surely, 2^1128320032 is an apocalyptic number.

It is an amenable number.

1128320032 is an abundant number, since it is smaller than the sum of its proper divisors (1479033248).

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

1128320032 is a wasteful number, since it uses less digits than its factorization.

1128320032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136193 (or 136185 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1128320032 is about 33590.4753166727. The cubic root of 1128320032 is about 1041.0640096745.

Adding to 1128320032 its reverse (2300238211), we get a palindrome (3428558243).

The spelling of 1128320032 in words is "one billion, one hundred twenty-eight million, three hundred twenty thousand, thirty-two".