1118748672 has 180 divisors, whose sum is σ = 3363467016. Its totient is φ = 371589120.

The previous prime is 1118748667. The next prime is 1118748679. The reversal of 1118748672 is 2768478111.

It is a super-2 number, since 2×1118748672² = 2503197182203527168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1118748679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3981172 + ... + 3981452.

Almost surely, 2^1118748672 is an apocalyptic number.

1118748672 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 1118748672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1681733508).

1118748672 is an abundant number, since it is smaller than the sum of its proper divisors (2244718344).

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

1118748672 is an frugal number, since it uses more digits than its factorization.

1118748672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 286 counting only the distinct ones).

The product of its digits is 150528, while the sum is 45.

The square root of 1118748672 is about 33447.7005487672. The cubic root of 1118748672 is about 1038.1119195035. Note that the first 3 decimals are identical.

The spelling of 1118748672 in words is "one billion, one hundred eighteen million, seven hundred forty-eight thousand, six hundred seventy-two".