171140340 has 72 divisors (see below), whose sum is σ = 557438112. Its totient is φ = 39117120.

The previous prime is 171140327. The next prime is 171140341. The reversal of 171140340 is 43041171.

171140340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171140341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26166 + ... + 32045.

It is an arithmetic number, because the mean of its divisors is an integer number (7742196).

Almost surely, 2^171140340 is an apocalyptic number.

171140340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

171140340 is an abundant number, since it is smaller than the sum of its proper divisors (386297772).

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

171140340 is a wasteful number, since it uses less digits than its factorization.

171140340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58237 (or 58228 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 171140340 is about 13082.0617641104. The cubic root of 171140340 is about 555.2017122491.

The spelling of 171140340 in words is "one hundred seventy-one million, one hundred forty thousand, three hundred forty".