1163743920 has 240 divisors, whose sum is σ = 4161087840. Its totient is φ = 290635776.

The previous prime is 1163743859. The next prime is 1163743951. The reversal of 1163743920 is 293473611.

1163743920 is a `hidden beast` number, since 11 + 637 + 4 + 3 + 9 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×1163743920² = 2708599822673932800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 1326522 + ... + 1327398.

It is an arithmetic number, because the mean of its divisors is an integer number (17337866).

Almost surely, 2^1163743920 is an apocalyptic number.

1163743920 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 1163743920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2080543920).

1163743920 is an abundant number, since it is smaller than the sum of its proper divisors (2997343920).

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

1163743920 is a wasteful number, since it uses less digits than its factorization.

1163743920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012 (or 1003 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 1163743920 is about 34113.6910931667. The cubic root of 1163743920 is about 1051.8467635719.

The spelling of 1163743920 in words is "one billion, one hundred sixty-three million, seven hundred forty-three thousand, nine hundred twenty".