1163578340 has 24 divisors (see below), whose sum is σ = 2444181432. Its totient is φ = 465304320.

The previous prime is 1163578307. The next prime is 1163578343. The reversal of 1163578340 is 438753611.

It can be written as a sum of positive squares in 4 ways, for example, as 44809636 + 1118768704 = 6694^2 + 33448^2 .

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1163578294 and 1163578303.

It is not an unprimeable number, because it can be changed into a prime (1163578343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109670 + ... + 119810.

It is an arithmetic number, because the mean of its divisors is an integer number (101840893).

Almost surely, 2^1163578340 is an apocalyptic number.

1163578340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163578340 is an abundant number, since it is smaller than the sum of its proper divisors (1280603092).

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

1163578340 is a wasteful number, since it uses less digits than its factorization.

1163578340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15887 (or 15885 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 1163578340 is about 34111.2641219876. The cubic root of 1163578340 is about 1051.7968748622.

The spelling of 1163578340 in words is "one billion, one hundred sixty-three million, five hundred seventy-eight thousand, three hundred forty".