1163909760 has 384 divisors, whose sum is σ = 4273767360. Its totient is φ = 268369920.

The previous prime is 1163909713. The next prime is 1163909783. The reversal of 1163909760 is 679093611.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5516055 + ... + 5516265.

Almost surely, 2^1163909760 is an apocalyptic number.

1163909760 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 1163909760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2136883680).

1163909760 is an abundant number, since it is smaller than the sum of its proper divisors (3109857600).

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

1163909760 is a wasteful number, since it uses less digits than its factorization.

1163909760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 1163909760 is about 34116.1217022099. The cubic root of 1163909760 is about 1051.8967258757.

The spelling of 1163909760 in words is "one billion, one hundred sixty-three million, nine hundred nine thousand, seven hundred sixty".