1128331738 has 8 divisors (see below), whose sum is σ = 1747094400. Its totient is φ = 545966940.

The previous prime is 1128331661. The next prime is 1128331747. The reversal of 1128331738 is 8371338211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1128331697 and 1128331706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9099388 + ... + 9099511.

It is an arithmetic number, because the mean of its divisors is an integer number (218386800).

Almost surely, 2^1128331738 is an apocalyptic number.

1128331738 is a deficient number, since it is larger than the sum of its proper divisors (618762662).

1128331738 is a wasteful number, since it uses less digits than its factorization.

1128331738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18198932.

The product of its digits is 24192, while the sum is 37.

The square root of 1128331738 is about 33590.6495620433. The cubic root of 1128331738 is about 1041.0676099098.

Adding to 1128331738 its reverse (8371338211), we get a palindrome (9499669949).

The spelling of 1128331738 in words is "one billion, one hundred twenty-eight million, three hundred thirty-one thousand, seven hundred thirty-eight".