1113727888 has 80 divisors (see below), whose sum is σ = 2662329600. Its totient is φ = 439515648.

The previous prime is 1113727871. The next prime is 1113727889. The reversal of 1113727888 is 8887273111.

It is not an unprimeable number, because it can be changed into a prime (1113727889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 871506 + ... + 872782.

It is an arithmetic number, because the mean of its divisors is an integer number (33279120).

Almost surely, 2^1113727888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1113727888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1331164800).

1113727888 is an abundant number, since it is smaller than the sum of its proper divisors (1548601712).

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

1113727888 is a wasteful number, since it uses less digits than its factorization.

1113727888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904 (or 1898 counting only the distinct ones).

The product of its digits is 150528, while the sum is 46.

The square root of 1113727888 is about 33372.5619034560. The cubic root of 1113727888 is about 1036.5566246009.

The spelling of 1113727888 in words is "one billion, one hundred thirteen million, seven hundred twenty-seven thousand, eight hundred eighty-eight".