1117418928 has 80 divisors (see below), whose sum is σ = 2952239616. Its totient is φ = 364066560.

The previous prime is 1117418921. The next prime is 1117418947. The reversal of 1117418928 is 8298147111.

It is a self number, because there is not a number n which added to its sum of digits gives 1117418928.

It is not an unprimeable number, because it can be changed into a prime (1117418921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 841401 + ... + 842727.

Almost surely, 2^1117418928 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 1117418928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1476119808).

1117418928 is an abundant number, since it is smaller than the sum of its proper divisors (1834820688).

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

1117418928 is a wasteful number, since it uses less digits than its factorization.

1117418928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722 (or 1716 counting only the distinct ones).

The product of its digits is 32256, while the sum is 42.

The square root of 1117418928 is about 33427.8166801244. The cubic root of 1117418928 is about 1037.7004567042.

The spelling of 1117418928 in words is "one billion, one hundred seventeen million, four hundred eighteen thousand, nine hundred twenty-eight".