1113285888 has 432 divisors, whose sum is σ = 3928404480. Its totient is φ = 298598400.

The previous prime is 1113285881. The next prime is 1113285907. The reversal of 1113285888 is 8885823111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113285881) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 10213578 + ... + 10213686.

Almost surely, 2^1113285888 is an apocalyptic number.

1113285888 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 1113285888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1964202240).

1113285888 is an abundant number, since it is smaller than the sum of its proper divisors (2815118592).

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

1113285888 is a wasteful number, since it uses less digits than its factorization.

1113285888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 169 counting only the distinct ones).

The product of its digits is 122880, while the sum is 45.

The square root of 1113285888 is about 33365.9390396854. The cubic root of 1113285888 is about 1036.4194819902.

It can be divided in two parts, 11132 and 85888, that added together give a triangular number (97020 = T₄₄₀).

The spelling of 1113285888 in words is "one billion, one hundred thirteen million, two hundred eighty-five thousand, eight hundred eighty-eight".