1000117800 has 384 divisors, whose sum is σ = 3816720000. Its totient is φ = 238694400.

The previous prime is 1000117799. The next prime is 1000117817. The reversal of 1000117800 is 87110001.

1000117800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1000117800² = 2000471227753680000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6712126 + ... + 6712274.

It is an arithmetic number, because the mean of its divisors is an integer number (9939375).

Almost surely, 2^1000117800 is an apocalyptic number.

1000117800 is a gapful number since it is divisible by the number (10) 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 1000117800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1908360000).

1000117800 is an abundant number, since it is smaller than the sum of its proper divisors (2816602200).

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

1000117800 is a wasteful number, since it uses less digits than its factorization.

1000117800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 18.

The square root of 1000117800 is about 31624.6391283758. The cubic root of 1000117800 is about 1000.0392651249.

Adding to 1000117800 its reverse (87110001), we get a palindrome (1087227801).

The spelling of 1000117800 in words is "one billion, one hundred seventeen thousand, eight hundred".