1163355940 has 24 divisors (see below), whose sum is σ = 2571629760. Its totient is φ = 440850528.

The previous prime is 1163355899. The next prime is 1163356001. The reversal of 1163355940 is 495533611.

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 1163355940.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1530352 + ... + 1531111.

It is an arithmetic number, because the mean of its divisors is an integer number (107151240).

Almost surely, 2^1163355940 is an apocalyptic number.

1163355940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163355940 is an abundant number, since it is smaller than the sum of its proper divisors (1408273820).

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

1163355940 is a wasteful number, since it uses less digits than its factorization.

1163355940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3061491 (or 3061489 counting only the distinct ones).

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

The square root of 1163355940 is about 34108.0040459714. The cubic root of 1163355940 is about 1051.7298590249.

The spelling of 1163355940 in words is "one billion, one hundred sixty-three million, three hundred fifty-five thousand, nine hundred forty".