171228760 has 128 divisors (see below), whose sum is σ = 445176000. Its totient is φ = 58834944.

The previous prime is 171228737. The next prime is 171228829. The reversal of 171228760 is 67822171.

It is a happy number.

171228760 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 2×171228760² = 58638576502275200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 374452 + ... + 374908.

Almost surely, 2^171228760 is an apocalyptic number.

171228760 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 171228760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222588000).

171228760 is an abundant number, since it is smaller than the sum of its proper divisors (273947240).

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

171228760 is a wasteful number, since it uses less digits than its factorization.

171228760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 171228760 is about 13085.4407644527. The cubic root of 171228760 is about 555.2973111467.

The spelling of 171228760 in words is "one hundred seventy-one million, two hundred twenty-eight thousand, seven hundred sixty".