1163043328 has 20 divisors (see below), whose sum is σ = 2323816110. Its totient is φ = 581521408.

The previous prime is 1163043313. The next prime is 1163043377. The reversal of 1163043328 is 8233403611.

It can be written as a sum of positive squares in only one way, i.e., 1078991104 + 84052224 = 32848^2 + 9168^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1163043328.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1135273 + ... + 1136296.

Almost surely, 2^1163043328 is an apocalyptic number.

It is an amenable number.

1163043328 is a deficient number, since it is larger than the sum of its proper divisors (1160772782).

1163043328 is an frugal number, since it uses more digits than its factorization.

1163043328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271587 (or 2271571 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1163043328 is about 34103.4210600638. The cubic root of 1163043328 is about 1051.6356451455.

Adding to 1163043328 its reverse (8233403611), we get a palindrome (9396446939).

The spelling of 1163043328 in words is "one billion, one hundred sixty-three million, forty-three thousand, three hundred twenty-eight".