1116408020 has 96 divisors (see below), whose sum is σ = 3055304448. Its totient is φ = 332531712.

The previous prime is 1116408001. The next prime is 1116408101. The reversal of 1116408020 is 208046111.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 12899 + ... + 48981.

It is an arithmetic number, because the mean of its divisors is an integer number (31826088).

Almost surely, 2^1116408020 is an apocalyptic number.

1116408020 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 1116408020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1527652224).

1116408020 is an abundant number, since it is smaller than the sum of its proper divisors (1938896428).

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

1116408020 is a wasteful number, since it uses less digits than its factorization.

1116408020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36129 (or 36127 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 1116408020 is about 33412.6924985102. The cubic root of 1116408020 is about 1037.3874328928.

The spelling of 1116408020 in words is "one billion, one hundred sixteen million, four hundred eight thousand, twenty".