171306380 has 48 divisors (see below), whose sum is σ = 414140160. Its totient is φ = 58304448.

The previous prime is 171306379. The next prime is 171306389. The reversal of 171306380 is 83603171.

171306380 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (171306389) 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, 15059 + ... + 23861.

It is an arithmetic number, because the mean of its divisors is an integer number (8627920).

Almost surely, 2^171306380 is an apocalyptic number.

171306380 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 171306380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207070080).

171306380 is an abundant number, since it is smaller than the sum of its proper divisors (242833780).

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

171306380 is a wasteful number, since it uses less digits than its factorization.

171306380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8958 (or 8956 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 171306380 is about 13088.4063200987. The cubic root of 171306380 is about 555.3812060602.

The spelling of 171306380 in words is "one hundred seventy-one million, three hundred six thousand, three hundred eighty".