116385280 has 80 divisors (see below), whose sum is σ = 304493904. Its totient is φ = 42311680.

The previous prime is 116385233. The next prime is 116385289. The reversal of 116385280 is 82583611.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116385289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26094 + ... + 30226.

Almost surely, 2^116385280 is an apocalyptic number.

116385280 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 116385280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152246952).

116385280 is an abundant number, since it is smaller than the sum of its proper divisors (188108624).

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

116385280 is an equidigital number, since it uses as much as digits as its factorization.

116385280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4167 (or 4151 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 116385280 is about 10788.2009621623. The cubic root of 116385280 is about 488.2392448683.

The spelling of 116385280 in words is "one hundred sixteen million, three hundred eighty-five thousand, two hundred eighty".