1163122240 has 112 divisors (see below), whose sum is σ = 3332073600. Its totient is φ = 377782272.

The previous prime is 1163122237. The next prime is 1163122267. The reversal of 1163122240 is 422213611.

It is a tau number, because it is divible by the number of its divisors (112).

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 15 ways as a sum of consecutive naturals, for example, 28896 + ... + 56224.

Almost surely, 2^1163122240 is an apocalyptic number.

1163122240 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 1163122240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1666036800).

1163122240 is an abundant number, since it is smaller than the sum of its proper divisors (2168951360).

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

1163122240 is a wasteful number, since it uses less digits than its factorization.

1163122240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27372 (or 27362 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1163122240 is about 34104.5779918180. The cubic root of 1163122240 is about 1051.6594289528.

Adding to 1163122240 its reverse (422213611), we get a palindrome (1585335851).

The spelling of 1163122240 in words is "one billion, one hundred sixty-three million, one hundred twenty-two thousand, two hundred forty".