171049472 has 80 divisors (see below), whose sum is σ = 377413344. Its totient is φ = 77440000.

The previous prime is 171049469. The next prime is 171049481. The reversal of 171049472 is 274940171.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681347 + ... + 681597.

Almost surely, 2^171049472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171049472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188706672).

171049472 is an abundant number, since it is smaller than the sum of its proper divisors (206363872).

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

171049472 is an frugal number, since it uses more digits than its factorization.

171049472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 171049472 is about 13078.5883030241. The cubic root of 171049472 is about 555.1034322824.

The spelling of 171049472 in words is "one hundred seventy-one million, forty-nine thousand, four hundred seventy-two".