1116179280 has 120 divisors (see below), whose sum is σ = 3785862600. Its totient is φ = 294681600.

The previous prime is 1116179279. The next prime is 1116179297. The reversal of 1116179280 is 829716111.

1116179280 is a `hidden beast` number, since 1 + 11 + 617 + 9 + 28 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 284664384 + 831514896 = 16872^2 + 28836^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65046 + ... + 80394.

It is an arithmetic number, because the mean of its divisors is an integer number (31548855).

Almost surely, 2^1116179280 is an apocalyptic number.

1116179280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1116179280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1892931300).

1116179280 is an abundant number, since it is smaller than the sum of its proper divisors (2669683320).

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

1116179280 is a wasteful number, since it uses less digits than its factorization.

1116179280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15469 (or 15460 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 36.

The square root of 1116179280 is about 33409.2693724361. The cubic root of 1116179280 is about 1037.3165782097.

The spelling of 1116179280 in words is "one billion, one hundred sixteen million, one hundred seventy-nine thousand, two hundred eighty".