1163910720 has 336 divisors, whose sum is σ = 4357298880. Its totient is φ = 262434816.

The previous prime is 1163910719. The next prime is 1163910733. The reversal of 1163910720 is 270193611.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 5127247 + ... + 5127473.

Almost surely, 2^1163910720 is an apocalyptic number.

1163910720 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 1163910720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2178649440).

1163910720 is an abundant number, since it is smaller than the sum of its proper divisors (3193388160).

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

1163910720 is a wasteful number, since it uses less digits than its factorization.

1163910720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 1163910720 is about 34116.1357718016. The cubic root of 1163910720 is about 1051.8970150793.

The spelling of 1163910720 in words is "one billion, one hundred sixty-three million, nine hundred ten thousand, seven hundred twenty".