1118742912 has 144 divisors (see below), whose sum is σ = 3745088100. Its totient is φ = 319624704.

The previous prime is 1118742899. The next prime is 1118742913. The reversal of 1118742912 is 2192478111.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118742913) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 46539 + ... + 66357.

Almost surely, 2^1118742912 is an apocalyptic number.

1118742912 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 1118742912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1872544050).

1118742912 is an abundant number, since it is smaller than the sum of its proper divisors (2626345188).

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

1118742912 is a wasteful number, since it uses less digits than its factorization.

1118742912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19853 (or 19831 counting only the distinct ones).

The product of its digits is 8064, while the sum is 36.

The square root of 1118742912 is about 33447.6144440826. The cubic root of 1118742912 is about 1038.1101378895.

The spelling of 1118742912 in words is "one billion, one hundred eighteen million, seven hundred forty-two thousand, nine hundred twelve".