1118483820 has 36 divisors (see below), whose sum is σ = 3392734800. Its totient is φ = 298262304.

The previous prime is 1118483819. The next prime is 1118483833. The reversal of 1118483820 is 283848111.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3106720 + ... + 3107079.

Almost surely, 2^1118483820 is an apocalyptic number.

1118483820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1118483820 is an abundant number, since it is smaller than the sum of its proper divisors (2274250980).

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

1118483820 is a wasteful number, since it uses less digits than its factorization.

1118483820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6213814 (or 6213809 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 1118483820 is about 33443.7411184813. The cubic root of 1118483820 is about 1038.0299923395.

The spelling of 1118483820 in words is "one billion, one hundred eighteen million, four hundred eighty-three thousand, eight hundred twenty".