220171230 has 64 divisors (see below), whose sum is σ = 601473600. Its totient is φ = 57277440.

The previous prime is 220171229. The next prime is 220171243. The reversal of 220171230 is 32171022.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 1126 + ... + 21014.

It is an arithmetic number, because the mean of its divisors is an integer number (9398025).

Almost surely, 2^220171230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220171230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300736800).

220171230 is an abundant number, since it is smaller than the sum of its proper divisors (381302370).

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

220171230 is a wasteful number, since it uses less digits than its factorization.

220171230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19946 (or 19940 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 220171230 is about 14838.1680136060. The cubic root of 220171230 is about 603.8376517162.

The spelling of 220171230 in words is "two hundred twenty million, one hundred seventy-one thousand, two hundred thirty".