1163280340 has 12 divisors (see below), whose sum is σ = 2442888756. Its totient is φ = 465312128.

The previous prime is 1163280337. The next prime is 1163280379. The reversal of 1163280340 is 430823611.

It can be written as a sum of positive squares in 2 ways, for example, as 603390096 + 559890244 = 24564^2 + 23662^2 .

It is a super-2 number, since 2×1163280340² = 2706442298861031200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1163280299 and 1163280308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29081989 + ... + 29082028.

It is an arithmetic number, because the mean of its divisors is an integer number (203574063).

Almost surely, 2^1163280340 is an apocalyptic number.

1163280340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163280340 is an abundant number, since it is smaller than the sum of its proper divisors (1279608416).

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

1163280340 is a wasteful number, since it uses less digits than its factorization.

1163280340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58164026 (or 58164024 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1163280340 is about 34106.8957836975. The cubic root of 1163280340 is about 1051.7070765164.

The spelling of 1163280340 in words is "one billion, one hundred sixty-three million, two hundred eighty thousand, three hundred forty".