1113818688 has 98 divisors (see below), whose sum is σ = 3313973814. Its totient is φ = 371257344.

The previous prime is 1113818683. The next prime is 1113818707. The reversal of 1113818688 is 8868183111.

1113818688 is a `hidden beast` number, since 111 + 381 + 86 + 88 = 666.

It can be written as a sum of positive squares in only one way, i.e., 752514624 + 361304064 = 27432^2 + 19008^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1113818683) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 34720 + ... + 58592.

Almost surely, 2^1113818688 is an apocalyptic number.

1113818688 is a gapful number since it is divisible by the number (18) 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 1113818688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1656986907).

1113818688 is an abundant number, since it is smaller than the sum of its proper divisors (2200155126).

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

1113818688 is an frugal number, since it uses more digits than its factorization.

1113818688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23903 (or 23878 counting only the distinct ones).

The product of its digits is 73728, while the sum is 45.

The square root of 1113818688 is about 33373.9222747342. The cubic root of 1113818688 is about 1036.5847932960.

The spelling of 1113818688 in words is "one billion, one hundred thirteen million, eight hundred eighteen thousand, six hundred eighty-eight".