1163856400 has 240 divisors, whose sum is σ = 3409781760. Its totient is φ = 372902400.

The previous prime is 1163856367. The next prime is 1163856403. The reversal of 1163856400 is 46583611.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1163856403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6969117 + ... + 6969283.

It is an arithmetic number, because the mean of its divisors is an integer number (14207424).

Almost surely, 2^1163856400 is an apocalyptic number.

1163856400 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 1163856400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1704890880).

1163856400 is an abundant number, since it is smaller than the sum of its proper divisors (2245925360).

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

1163856400 is a wasteful number, since it uses less digits than its factorization.

1163856400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 1163856400 is about 34115.3396582828. The cubic root of 1163856400 is about 1051.8806507271.

The spelling of 1163856400 in words is "one billion, one hundred sixty-three million, eight hundred fifty-six thousand, four hundred".