171868830 has 64 divisors (see below), whose sum is σ = 474398208. Its totient is φ = 39035520.

The previous prime is 171868817. The next prime is 171868859. The reversal of 171868830 is 38868171.

171868830 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 (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31720 + ... + 36740.

It is an arithmetic number, because the mean of its divisors is an integer number (7412472).

Almost surely, 2^171868830 is an apocalyptic number.

171868830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 171868830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237199104).

171868830 is an abundant number, since it is smaller than the sum of its proper divisors (302529378).

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

171868830 is a wasteful number, since it uses less digits than its factorization.

171868830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5201.

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 171868830 is about 13109.8752854480. The cubic root of 171868830 is about 555.9883694926.

The spelling of 171868830 in words is "one hundred seventy-one million, eight hundred sixty-eight thousand, eight hundred thirty".