1116239220 has 72 divisors (see below), whose sum is σ = 3533152896. Its totient is φ = 284720832.

The previous prime is 1116239219. The next prime is 1116239221. The reversal of 1116239220 is 229326111.

1116239220 is a `hidden beast` number, since 1 + 11 + 623 + 9 + 2 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (1116239219) and next prime (1116239221).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116239221) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 130672 + ... + 138951.

It is an arithmetic number, because the mean of its divisors is an integer number (49071568).

Almost surely, 2^1116239220 is an apocalyptic number.

1116239220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1116239220 is an abundant number, since it is smaller than the sum of its proper divisors (2416913676).

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

1116239220 is a wasteful number, since it uses less digits than its factorization.

1116239220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269661 (or 269656 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1116239220 is about 33410.1664168259. The cubic root of 1116239220 is about 1037.3351462074.

The spelling of 1116239220 in words is "one billion, one hundred sixteen million, two hundred thirty-nine thousand, two hundred twenty".