1118044512 has 384 divisors, whose sum is σ = 3838464000. Its totient is φ = 315394560.

The previous prime is 1118044489. The next prime is 1118044517. The reversal of 1118044512 is 2154408111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118044517) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36065937 + ... + 36065967.

It is an arithmetic number, because the mean of its divisors is an integer number (9996000).

Almost surely, 2^1118044512 is an apocalyptic number.

1118044512 is a gapful number since it is divisible by the number (12) 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 1118044512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1919232000).

1118044512 is an abundant number, since it is smaller than the sum of its proper divisors (2720419488).

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

1118044512 is a wasteful number, since it uses less digits than its factorization.

1118044512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 1118044512 is about 33437.1726077430. The cubic root of 1118044512 is about 1037.8940718527.

The spelling of 1118044512 in words is "one billion, one hundred eighteen million, forty-four thousand, five hundred twelve".