1163273880 has 64 divisors (see below), whose sum is σ = 3492367200. Its totient is φ = 309980160.

The previous prime is 1163273873. The next prime is 1163273893. The reversal of 1163273880 is 883723611.

It is a super-2 number, since 2×1163273880² = 2706412239780508800, which contains 22 as substring.

It is a congruent number.

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, 220716 + ... + 225924.

Almost surely, 2^1163273880 is an apocalyptic number.

1163273880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163273880 is an abundant number, since it is smaller than the sum of its proper divisors (2329093320).

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

1163273880 is a wasteful number, since it uses less digits than its factorization.

1163273880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7084 (or 7080 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 1163273880 is about 34106.8010813093. The cubic root of 1163273880 is about 1051.7051297114.

The spelling of 1163273880 in words is "one billion, one hundred sixty-three million, two hundred seventy-three thousand, eight hundred eighty".