1163855200 has 144 divisors (see below), whose sum is σ = 3035805696. Its totient is φ = 434649600.

The previous prime is 1163855171. The next prime is 1163855213. The reversal of 1163855200 is 25583611.

It is a congruent number.

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, 790465 + ... + 791935.

It is an arithmetic number, because the mean of its divisors is an integer number (21081984).

Almost surely, 2^1163855200 is an apocalyptic number.

1163855200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1163855200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1517902848).

1163855200 is an abundant number, since it is smaller than the sum of its proper divisors (1871950496).

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

1163855200 is a wasteful number, since it uses less digits than its factorization.

1163855200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557 (or 1544 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 1163855200 is about 34115.3220708819. The cubic root of 1163855200 is about 1051.8802892114.

The spelling of 1163855200 in words is "one billion, one hundred sixty-three million, eight hundred fifty-five thousand, two hundred".