171900342 has 48 divisors (see below), whose sum is σ = 388477440. Its totient is φ = 54867456.

The previous prime is 171900341. The next prime is 171900373. The reversal of 171900342 is 243009171.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171900341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64998 + ... + 67590.

It is an arithmetic number, because the mean of its divisors is an integer number (8093280).

Almost surely, 2^171900342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171900342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194238720).

171900342 is an abundant number, since it is smaller than the sum of its proper divisors (216577098).

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

171900342 is a wasteful number, since it uses less digits than its factorization.

171900342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757 (or 2754 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 171900342 is about 13111.0770724605. The cubic root of 171900342 is about 556.0223474102.

The spelling of 171900342 in words is "one hundred seventy-one million, nine hundred thousand, three hundred forty-two".