1116268840 has 32 divisors (see below), whose sum is σ = 2513078280. Its totient is φ = 446245632.

The previous prime is 1116268819. The next prime is 1116268871. The reversal of 1116268840 is 488626111.

It can be written as a sum of positive squares in 4 ways, for example, as 969325956 + 146942884 = 31134^2 + 12122^2 .

It is a super-2 number, since 2×1116268840² = 2492112246309891200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1116268840.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70102 + ... + 84538.

Almost surely, 2^1116268840 is an apocalyptic number.

1116268840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1116268840 is an abundant number, since it is smaller than the sum of its proper divisors (1396809440).

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

1116268840 is a wasteful number, since it uses less digits than its factorization.

1116268840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16381 (or 16377 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 1116268840 is about 33410.6096921322. The cubic root of 1116268840 is about 1037.3443215390.

The spelling of 1116268840 in words is "one billion, one hundred sixteen million, two hundred sixty-eight thousand, eight hundred forty".