1163853380 has 12 divisors (see below), whose sum is σ = 2444092140. Its totient is φ = 465541344.

The previous prime is 1163853329. The next prime is 1163853391. The reversal of 1163853380 is 833583611.

It can be written as a sum of positive squares in 2 ways, for example, as 168324676 + 995528704 = 12974^2 + 31552^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29096315 + ... + 29096354.

It is an arithmetic number, because the mean of its divisors is an integer number (203674345).

Almost surely, 2^1163853380 is an apocalyptic number.

1163853380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163853380 is an abundant number, since it is smaller than the sum of its proper divisors (1280238760).

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

1163853380 is a wasteful number, since it uses less digits than its factorization.

1163853380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58192678 (or 58192676 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1163853380 is about 34115.2953966399. The cubic root of 1163853380 is about 1051.8797409120.

The spelling of 1163853380 in words is "one billion, one hundred sixty-three million, eight hundred fifty-three thousand, three hundred eighty".