171952240 has 20 divisors (see below), whose sum is σ = 399789144. Its totient is φ = 68780864.

The previous prime is 171952201. The next prime is 171952243. The reversal of 171952240 is 42259171.

171952240 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171952243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1074622 + ... + 1074781.

Almost surely, 2^171952240 is an apocalyptic number.

171952240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

171952240 is an abundant number, since it is smaller than the sum of its proper divisors (227836904).

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

171952240 is a wasteful number, since it uses less digits than its factorization.

171952240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149416 (or 2149410 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 171952240 is about 13113.0560892570. The cubic root of 171952240 is about 556.0782975496.

The spelling of 171952240 in words is "one hundred seventy-one million, nine hundred fifty-two thousand, two hundred forty".