1163559340 has 24 divisors (see below), whose sum is σ = 2452776480. Its totient is φ = 463651968.

The previous prime is 1163559283. The next prime is 1163559343. The reversal of 1163559340 is 439553611.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1163559340.

It is not an unprimeable number, because it can be changed into a prime (1163559343) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 105345 + ... + 115864.

It is an arithmetic number, because the mean of its divisors is an integer number (102199020).

Almost surely, 2^1163559340 is an apocalyptic number.

1163559340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163559340 is an abundant number, since it is smaller than the sum of its proper divisors (1289217140).

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

1163559340 is a wasteful number, since it uses less digits than its factorization.

1163559340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221481 (or 221479 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 1163559340 is about 34110.9856204713. The cubic root of 1163559340 is about 1051.7911499219.

The spelling of 1163559340 in words is "one billion, one hundred sixty-three million, five hundred fifty-nine thousand, three hundred forty".