1118844100 has 36 divisors (see below), whose sum is σ = 2648611728. Its totient is φ = 406852000.

The previous prime is 1118844091. The next prime is 1118844107. The reversal of 1118844100 is 14488111.

It is not an unprimeable number, because it can be changed into a prime (1118844107) 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 11 ways as a sum of consecutive naturals, for example, 507466 + ... + 509665.

It is an arithmetic number, because the mean of its divisors is an integer number (73572548).

Almost surely, 2^1118844100 is an apocalyptic number.

1118844100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1118844100 is an abundant number, since it is smaller than the sum of its proper divisors (1529767628).

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

1118844100 is a wasteful number, since it uses less digits than its factorization.

1118844100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017156 (or 1017149 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 28.

The square root of 1118844100 is about 33449.1270439155. The cubic root of 1118844100 is about 1038.1414352563.

The spelling of 1118844100 in words is "one billion, one hundred eighteen million, eight hundred forty-four thousand, one hundred".