1118458944 has 84 divisors (see below), whose sum is σ = 3211683696. Its totient is φ = 372142848.

The previous prime is 1118458933. The next prime is 1118458993. The reversal of 1118458944 is 4498548111.

1118458944 is a `hidden beast` number, since 11 + 18 + 4 + 589 + 44 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1118458944.

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, 391987 + ... + 394829.

Almost surely, 2^1118458944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1118458944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1605841848).

1118458944 is an abundant number, since it is smaller than the sum of its proper divisors (2093224752).

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

1118458944 is a wasteful number, since it uses less digits than its factorization.

1118458944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3544 (or 3531 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 1118458944 is about 33443.3692082601. The cubic root of 1118458944 is about 1038.0222967356.

The spelling of 1118458944 in words is "one billion, one hundred eighteen million, four hundred fifty-eight thousand, nine hundred forty-four".