117806280 has 64 divisors (see below), whose sum is σ = 360106560. Its totient is φ = 30820608.

The previous prime is 117806279. The next prime is 117806281. The reversal of 117806280 is 82608711.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (117806279) and next prime (117806281).

It is not an unprimeable number, because it can be changed into a prime (117806281) 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 15 ways as a sum of consecutive naturals, for example, 2902 + ... + 15621.

It is an arithmetic number, because the mean of its divisors is an integer number (5626665).

Almost surely, 2^117806280 is an apocalyptic number.

117806280 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 117806280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180053280).

117806280 is an abundant number, since it is smaller than the sum of its proper divisors (242300280).

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

117806280 is a wasteful number, since it uses less digits than its factorization.

117806280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18590 (or 18586 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 117806280 is about 10853.8601428248. The cubic root of 117806280 is about 490.2182562335.

The spelling of 117806280 in words is "one hundred seventeen million, eight hundred six thousand, two hundred eighty".