1117430864 has 40 divisors (see below), whose sum is σ = 2377749600. Its totient is φ = 504502400.

The previous prime is 1117430863. The next prime is 1117430887. The reversal of 1117430864 is 4680347111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117430861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4919 + ... + 47529.

It is an arithmetic number, because the mean of its divisors is an integer number (59443740).

Almost surely, 2^1117430864 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 1117430864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1188874800).

1117430864 is an abundant number, since it is smaller than the sum of its proper divisors (1260318736).

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

1117430864 is a wasteful number, since it uses less digits than its factorization.

1117430864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42779 (or 42773 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 1117430864 is about 33427.9952135931. The cubic root of 1117430864 is about 1037.7041515132.

Adding to 1117430864 its reverse (4680347111), we get a palindrome (5797777975).

The spelling of 1117430864 in words is "one billion, one hundred seventeen million, four hundred thirty thousand, eight hundred sixty-four".