170228156 has 48 divisors (see below), whose sum is σ = 354110400. Its totient is φ = 71547840.

The previous prime is 170228143. The next prime is 170228167. The reversal of 170228156 is 651822071.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71546 + ... + 73886.

It is an arithmetic number, because the mean of its divisors is an integer number (7377300).

Almost surely, 2^170228156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 170228156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177055200).

170228156 is an abundant number, since it is smaller than the sum of its proper divisors (183882244).

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

170228156 is a wasteful number, since it uses less digits than its factorization.

170228156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419 (or 2403 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 170228156 is about 13047.1512599494. The cubic root of 170228156 is about 554.2135396487.

The spelling of 170228156 in words is "one hundred seventy million, two hundred twenty-eight thousand, one hundred fifty-six".