171442008 has 160 divisors (see below), whose sum is σ = 517492800. Its totient is φ = 52835328.

The previous prime is 171442003. The next prime is 171442027. The reversal of 171442008 is 800244171.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171442003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 870166 + ... + 870362.

It is an arithmetic number, because the mean of its divisors is an integer number (3234330).

Almost surely, 2^171442008 is an apocalyptic number.

171442008 is a gapful number since it is divisible by the number (18) 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 171442008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258746400).

171442008 is an abundant number, since it is smaller than the sum of its proper divisors (346050792).

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

171442008 is a wasteful number, since it uses less digits than its factorization.

171442008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 171442008 is about 13093.5865216525. The cubic root of 171442008 is about 555.5277376175.

Adding to 171442008 its reverse (800244171), we get a palindrome (971686179).

The spelling of 171442008 in words is "one hundred seventy-one million, four hundred forty-two thousand, eight".